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https://www.youtube.com/watch?v=z6lL83wl31E

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Origami Proof of the Pythagorean Theorem

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ΦΩΤΙΟΣ ΧΑΤΖΗΒΑΣΙΛΕΙΟΥ

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http://aimsbucharest.weebly.com/wednesday-may-13th.html

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Theasure Hunt Muzeul Satului_codes by Irina Vasilescu

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https://www.mathsisfun.com/

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Math explained in easy language, plus puzzles, games, worksheets and an illustrated dictionary. For K-12 kids, teachers and parents.

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https://www.mathsisfun.com/definitions/index.html

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Formative Assessment Lessons for High School

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During the lesson, students first work individually to review their initial work. They then work in pairs to compare their approaches to the task, choosing a strategy that will produce an improved model and together implement that strategy. Students next review some sample work before discussing as a class the strengths and weaknesses of different approaches to the modeling task.

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https://naturalmath.com/courses/

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Natural Math courses invite parents, teachers, and children to make their own mathematics. Each page has sample activities you can check out, download, and try with your children.

Multiplication is our most requested course topic. This course is self-paced, organized into three themes: calculus, algebra, and number sense.

We love to read notes from participants explaining why they join, so here are a few:

My homeschooler (age 7) is discovering multiplication. He thinks math is like a fun mystery puzzle. - Christina

I teach at the secondary level to kids (Gr. 9 and 10) with very poor numeracy skills. I want to teach numeracy (esp. multiplication) since this has been a major 'gap' or roadblock to understanding curriculum. - Dawn

My daughter is only 4 so maybe a bit young, but she seems quite interested in numbers and things like fractals (partly thanks to Let it Go from Frozen that mentions fractals!) - Joe

We give you lots of ideas for adapting them for younger (ages 3-5) and older (13+ ) children. A single activity can take you as little as 10 minutes or as long as a couple of hours, depending on how much your child and you get into it.

Multiplication Explorers invites you to master holistic approach to learning multiplication. Memorization based on smart number patterns is a part of it. The course also includes bridges between multiplication and natural world, as well as links to many virtual and imaginary worlds in books, music, technology, art, and games.

One week daily, live online, math camp that is a fun way to learn about linear algebra and Cartesian geometry: matrices, graphing, coordinates, and more!

Children will...

...Do a lot of number practice without it being tedious.

...Be encouraged to look for and predict patterns.

...Learn coordinates.

...Learn what a matrix is and how to multiply a matrix by another matrix.

...Learn how matrices underlie programming and graphics.

...Grow their math eyes for noticing how transformations happen in nature.

...Enjoy the chance to visualize math in action.

...Be introduced to GeoGebra, a powerful modeling tool for algebra and geometry.

Are you uncomfortable leading a math activity without a script?

Do you wonder: What if they ask questions I can't answer? What if it doesn't go like I planned? How can I let the kids lead the activity?

Do you want to be more comfortable leading discussions and activities that are open-ended?

No matter your situation or past math experiences, you can learn the skill of effectively leading children while letting them make their own math. It may seem unusual, but acting improvisation can help us become more comfortable with open, playful, friendly mathematics!

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Register now Natural Math courses invite parents, teachers, and children to make their own mathematics. Each page has sample activities you can check out, download, and try with your children. Ongoing Multiplication Explorers Self-Paced - for families and groups, ages 3...Read more ›

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The Math in the Design and Building of Bridges

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The Math in the Design and Building of Bridges

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Contents of Curriculum Unit:

Introduction to Unit

Unit Objectives

The History of Bridges

Motivation for Unit

Introduction Discussion with Students

Bridge Language

The Types of Bridges

Interesting Famous Bridges

How to Choose the Right Bridge for the Job

Geometric Shapes in Bridge Trusses

Icebreaker activity

Bridge of the Day or Week and Daily Bonus Question

Understanding the Strength in Columns

Building Stability - Columns

Building Stability - Beams

Finding the Forces in a Truss

Final Project: Designing a Community Friendship/Peace Bridge

Final Project Rubric

Bibliography

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06.04.06: The Math in the Design and Building of Bridges

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These lessons will enable the students to learn the history of bridges, identify the basic types of bridges, understand bridge vocabulary, determine the most appropriate type bridge for a specific area based on factors like cost, climate, and function, research and apply information on the internet, understand the construction, explain the forces of compression and tension, use model software to discover the physics in bridge building, create scale drawings, measure and compute math problems accurately, build a model bridge to test load bearing and design a community bridge that will inspire hope and friendship.

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sketching and annotation tools (such as Sketch Box or Skitch), Geogebra, mindmapping tools (such as Mindomo), QR readers (such as ScanLife), photo editors (such as Pixlr or PicsArt), sound recording and sharing (such as Soundcloud), screenshot tools (such as Screenshot), doodling tools (such as You Doodle or Sketch for Keep), or even astronomy tools (such as SkyView). A very simple tool for creating QR codes treasure hunts is here or you can find ready-made (paid!) treasure hunts

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http://www.educationsupplies.co.uk/classroom-ideas/7-fun-ideas-for-outdoor-maths

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Creative STAR Learning | I'm a teacher, get me OUTSIDE here!

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When you write a book, one of the interesting challenges is deciding what needs to be included and what should be omitted. It's never an easy task. One concept that I felt I didn't do justice to in Messy Maths, was that of rotation. Thus I thought it would be good to...

This blog post is a guest post by Justina Danišová, who is an experienced environmental educator and home partner in the Czech Republic. She has her own website and is influential across her country in supporting educators to develop learning and play opportunities....

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Maths Outdoors | Creative STAR Learning | I'm a teacher, get me OUTSIDE here!

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When you write a book, one of the interesting challenges is deciding what needs to be included and what should be omitted. It's never an easy task. One concept that I felt I didn't do justice to in Messy Maths, was that of rotation. Thus I thought it would be good to...

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Resources:
https://www.countrysideclassroom.org.uk/resources?subjects=mathematics

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Find resources, lesson plans & case studies relating to the themes of food, farming and the natural environment. A range of quality assured educational content.

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sketching and annotation tools (such as Sketch Box or Skitch), Geogebra, mindmapping tools (such as Mindomo), QR readers (such as ScanLife), photo editors (such as Pixlr or PicsArt), sound recording and sharing (such as Soundcloud), screenshot tools (such as Screenshot), doodling tools (such as You Doodle or Sketch for Keep), or even astronomy tools (such as SkyView). A very simple tool for creating QR codes treasure hunts is here or you can find ready-made (paid!) treasure hunts 

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these tools for recording audio notes . A good tool can also be Educreations, for creating a lesson and sharing it. You can draw on a whiteboard or on photos while narrating what you are doing. The lesson can also be published on the Educreations website. I am not an iPad user, so if you need more STE(A)M apps, you can find them herehttps://ictevangelist.com/periodic-table-steam-ipad-apps/

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Kinesthetic - interaction with the environment

Existential - connecting to larger understandings

Interpersonal - interaction with others

Intrapersonal - feelings, values and attitudes

Logical - reasoning and problem solving

Rhythmic - sound and patterning

Naturalist - classifications, categories and hierarchies

Linguistic - spoken and written word

Visual - seeing and imagining

TEST:
http://www.surfaquarium.com/MI/inventory.htm

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https://www.youtube.com/watch?v=J9gvXmu_1BE

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https://www.youtube.com/watch?v=QTNg0ofgB78

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Make Your Own Impossible Cylinder--Mathematical Association of America's Math Horizons

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https://prezi.com/embed/vlijlr5azcxm/?

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http://jwilson.coe.uga.edu/

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Envelopes of Lines and Circles. This paper was constructed for a presentation/demonstration to Elbert County High School Mu Alpha Theta club. The paper examines the curves formed by sets of lines or circles that move along some defined paths.

Trisecting the Area of a Triangle . This is an investigation of the constructions required to divide the area of a triangle into three regions of equal area, under different initial conditions.
Squares. What is the ratio of areas of the two squares? This is a discussion of some exploration and extensions of this problem.

Alternative Approach to Tangents Problem

Explorations with Heron's Formula . Heron's formula for finding the area of a triangle given the lengths of its three sides is a nice tool for problem solving explorations.

Multiple-Application Medium for the Study of Polygonal Numbers
This article is an expanded version of the paper presented at the 1994 International Symposium on Mathematics/Science Education and Technology, San Diego, CA, and published as: Abramovich, S., Fujii, T., & Wilson, J. (1994). Exploring and Visualizing Properties of Polygonal Numbers in a Multiple-Application Computer-Enhanced Environment. In G.H. Marks (Ed.), Proceedings of the 1994 International Symposium on Mathematics/Science Education and Technology. Charlottesville, VA: AACE.

Some Comments on the GLaD construction.

An Interesting Ratio Result for Triangles . This paper by SriRanga S. Dattratreya and Ravi E. Dattratreya shows a construction and general ratio result for triangles that can be used to segment a line segment into parts.

. Given three points A, B, and C. Construct a line intersecting AC in the point X and BC in the point Y such that AX = XY = YB. The problem is from Polya's Discussion of an Equal Segments Problem Mathematical Discovery, Vol. 1, pp. 7-8.

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Envelopes of Lines and Circles. This paper was constructed for a presentation/demonstration to Elbert County High School Mu Alpha Theta club. The paper examines the curves formed by sets of lines or circles that move along some defined paths. Trisecting the Area of a Triangle .

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Timaeus
http://classics.mit.edu/Plato/timaeus.html

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https://nrich.maths.org/

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search

Enriching mathematics for all learners

A free-to-use collection of mathematics activities, lessons and problems designed to nurture curious, resourceful and confident learners of mathematics. Produced by The University of Cambridge.

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The Nrich Maths Project Cambridge,England. Mathematics resources for children,parents and teachers to enrich learning. Problems,children's solutions,interactivities,games,articles.

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https://www.coolmath4kids.com/

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Math and Games for Kids, Teachers and Parents. Math lessons and fun games for kindergarten to sixth grade, plus quizzes, brain teasers and more.

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http://vismath.ektf.hu/index.php?l=en&m=311

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Math-Art Activities for Experience-centered Education of Mathematics
Edited by Kristóf Fenyvesi, Ilona Oláhné Téglási and Ibolya Prokajné Szilágyi

Publisher: Eszterházy Károly College, Eger, 2014

ISBN: 978-615-5297-25-0

This publication is a pedagogical toolkit, which presents hands-on materials and detailed methodological descriptions for the realization of almost forty interactive math-art workshops in the classroom. A number of significant international representatives of visual mathematics, mathematical art and experience-centered mathematics teaching have contributed and we have tried to cover a wide variety of topics. Most of the activities we selected can be completed with paper or cardboard on a cost-effective way and equipment readily-available in most educational institutions such as scissors and colouring pencils, and, at most, a photocopier.

We hope that the teachers who use our toolkit will succeed in encouraging their students to see mathematics as a joyful endeavour rather than the dry and boring subject many believe it to be. Moreover, we hope that this collection is adopted as a handbook not just by math teachers, but also by art teachers wishing to illuminate the links between the two disciplines of art and math.

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Math-Art Activities for Experience-centered Education of Mathematics Edited by Kristóf Fenyvesi, Ilona Oláhné Téglási and Ibolya Prokajné Szilágyi Publisher: Eszterházy Károly College, Eger, 2014 ISBN: 978-615-5297-25-0 This publication is a pedagogical toolkit, which presents hands-on materials and detailed methodological descriptions for the realization of almost forty interactive math-art workshops in the classroom.

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https://www.youtube.com/watch?v=21vJfGXu7tg

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http://howtofoldit.org/

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Togel Singapore: Pengeluaran SGP, Toto SGP, Data Keluaran SGP Hari Ini

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Situs kami merupakan satu-satunya situs keluaran sgp sekaligus pengeluaran sgp hari ini tercepat, akurat dan valid di indonesia. Sebagai pemain togel singapore ataupun toto sgp harusnya sudah tahu pentingnya peranan dari data keluaran sgp. Dengan hadirnya situs keluaran togel singapore terpercaya seperti kami, para bettor bisa dengan gampang mencari nomor pengeluaran sgp hari ini dengan mudah dan gampang. Selain menawarkan data sgp terlengkap, kami juga memberikan pelayanan non stop selama 24 jam.

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Informasi Detail Tentang Judi Togel Singapore Pools

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Togel Singapore: Pengeluaran SGP, Toto SGP, Data Keluaran SGP Hari Ini

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Saksikan keluaran sgp prize dan data pengeluaran sgp hari ini untuk pasaran judi togel singapore pools tercepat, valid serta sah disini.

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http://mathpickle.com/project/minotaur-gores-pythagoras/

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MP1 Toughen up!

Students develop grit and resiliency in the face of nasty, thorny problems. It is the most sought after skill for our students.

MP2 Think abstractly!

Students take problems and reformat them mathematically. This is helpful because mathematics lets them use powerful operations like addition.

MP3 Work together!

Students discuss their strategies to collaboratively solve a problem and identify missteps in a failed solution. MathPickle recommends pairing up students for all its puzzles.

MP4 Model reality!

Students create a model that mimics the real world. Discoveries made by manipulating the model often hint at something in the real world.

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http://mathpickle.com/

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https://krazydad.com/

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Printable puzzles. Thousands of 'em. All free.

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https://www.artfulmaths.com/blog/category/christmas

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Last year I made my own Spirograph Christmas cards and I so enjoyed the process that this year I've decided to make my own mathsy cards again.

Recently I've been learning to draw a lot of Islamic geometric designs using compass and straight-edge, and I fancied using the same tools to create a Christmas card. I came up with the idea of constructing an accurate 5-pointed star (pentagram) and leaving the construction lines behind as part of the design.

Here's how they turned out :o)

I'm really happy with them, and they don't take too long to make if you get a little production line going. I thought I'd share the instructions so that you can make them too. I've also made a ' Construct a five-pointed star' powerpoint if you'd like to make them with your students as a 'Christmaths' activity.

You'll need a pair of compasses, a nice sharp pencil, a ruler and some coloured pens, pencils or paints. Metallic pens are great for getting a shimmery gold or silver outline. You'll also need some card to fold and construct your design on. Any sturdy 160-250 gsm card will do, but I used some pre-folded blank cards which can be bought cheaply in most stationery or craft shops.

STEP 1 Measure to find the centre of the front of your card and mark this faintly with your pencil. Draw a horizontal line through this centre, from side to side.

STEP 2 Place your compass point on your marked centre and draw a starting circle that leaves at least two or three centimetres of card around its edge. You need the space around the outside of your circle for some construction lines in the next step.

STEP 4 Outline your star in marker pen, or metallic pen for extra shimmeriness. Then colour it in. I used metallic watercolour paints for mine.

STEP 5 Finally, if you wish, you can outline your star again with a fine black pen. I achieved a 'interleaved' effect on my stars by outlining both sides of my original metallic line, going alternatively 'over and under' each line I met as I travelled around the star (see bottom right photo below).

If you have lots of cards to draw, then it's easiest to set up a production line. Gather your blank cards together in a pile and draw one step of the construction process at a time on every card. That is, draw all your starting horizontal lines on every card first, then all your starting circles, then all your perpendicular bisectors and so on. This helps you avoid having to repeatedy open and close your compass.

What other Christmassy things could you make with your stars? Do let me know in the comments below.

✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭

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Last year I made my own Spirograph Christmas cards and I so enjoyed the process that this year I've decided to make my own mathsy cards again.

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http://www.mathactivities.net/lessons/volume-activity.htm

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http://bedtimemath.org/

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Bedtime Math – We inspire kids to love math so they embrace and excel at it.

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Constructions by pin-and-string: conics | cónicas

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Constructions by pin-and-string: conics | cónicas

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https://youtu.be/mldZ_7QwLvs

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MathLapse: Constructions by pin-and-string: conics | Construções de fio esticado: cónicas

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https://www.youtube.com/watch?v=ZJsXr5hMJpE

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https://www.youtube.com/watch?v=QrDBRMKDxeM

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https://csdt.rpi.edu/culture/legacy/index2.html
Many cultural designs are based on math and computing principles. This software will help students learn these principles as they simulate the original artifacts, and develop their own creations

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Geometry Games

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Geometry Games - Dance Dance Transversal ⋆ GeometryCoach.com

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Dance Dance Transversal - Geometry Games - GeometryCoach.com - Fun Game mixing the popular game Dance Dance Revolution with a little bit of Geometry!

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Museum of Mathematics

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Learning Symmetry with LEGOs and Butterflies

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Learning Symmetry with LEGOs and Butterflies

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Symmetry is one of those tricky concepts that is good to practice frequently. I love that nature produces lots of fun examples of symmetry -- one of my favorite is the butterfly. S and I spoke a little about this when we made her DIY Butterfly Wings last year, so I think my mind naturally settled on that example yet again.

LEGOs have such fun bright shapes and colors that I thought they would be perfect for having fun with symmetry. I set S up with a giant butterfly with sticky wings (to prevent frustration with bumping blocks) and two piles of various sized LEGO blocks on either side of her.

We talked about how to make the wings symmetric - to put the same colored and shaped LEGO in the same spot on each side of the butterfly's body. I made sure that each pile S was grabbing from had the same colors/sizes of LEGOs to make the process faster for her.

She had so much fun designing her butterfly. I only got to place two blocks myself - she had a lot of investment and a total plan for how this butterfly was going to look.

When it was nearly done, we found that it was easier to rotate the butterfly so that S could reach the blank spots on its wings more easily.

And voila! The finished masterpiece!

This post contains affiliate links for your convenience.

To make your own sticky butterfly, take a piece of posterboard (or cardboard) and fold it in half. Trace a wing on one side and cut out the butterfly. Add a body to the center, and if you'd like, some pipecleaner antennae. :) Then, using the back of some contact paper, trace the outline of each wing. Peel the paper off of the contact paper and place it sticky side up. Use some tape around the edges of the contact paper wing to hold it in place. The contact paper is not quite strong enough to hold the LEGOs if you hang the butterfly vertically on a wall, but it is strong enough to prevent the LEGOs from scattering as you work.

Here are the other fun ideas shared today:

Check back all this week for more fun ideas for playing and learning with LEGOs!

All activities here are activities I feel are safe for my own children. As your child's parents/guardians, you will need to decide what you feel is safe for your family. I always encourage contacting your child's pediatrician for guidance if you are not sure about the safety/age appropriateness of an activity. All activities on this blog are intended to be performed with adult supervision. Appropriate and reasonable caution should be used when activities call for the use of materials that could potentially be harmful, such as scissors, or items that could present a choking risk (small items), or a drowning risk (water activities), and with introducing a new food/ingredient to a child (allergies). Observe caution and safety at all times. The author and blog disclaim liability for any damage, mishap, or injury that may occur from engaging in any of these activities on this blog.

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Learning Symmetry with LEGOs and Butterflies

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Symmetry is one of those tricky concepts that is good to practice frequently. I love that nature produces lots of fun examples of symmetry -- one of my favorite is the butterfly. S and I spoke a little about this when we made her DIY Butterfly Wings last year, so I think my mind naturally settled on that example yet again.

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This webpage illustrates some of the patterns I have made with LEGO. If you define mathematics as "the science of patterns" then LEGO are a tactile/visual computer to explore mathematics. Most of these experiments are in 2 dimensions, which seems quite enough space to get started!

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This webpage illustrates some of the patterns I have made with LEGO. If you define mathematics as "the science of patterns" then LEGO are a tactile/visual computer to explore mathematics. Most of these experiments are in 2 dimensions, which seems quite enough space to get started!

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For our third and final straw project (for now....) I'm completely geeking out with this straw geodesic dome & sphere. I have pretty much lived and breathed architecture my entire life (my father is an architect as well) so I have been familiar with geodesic domes practically since I learned to walk...okay maybe not quite that long but you get the picture.....so I'm really curious if everyone else out there is as fascinated by them as me. If you are please leave a comment below telling us your favorite example of a Geodesic Dome!
For those of you that are just tuning into domes scroll down to the "Looks Like" section of the post for a quick primer on domes and their master, the one and only Bucky Fuller, as architects and designers go he considered a legend.
We have a fabulous Geodesic Climbing Dome in our backyard that has provided a lot of fun for my kids over the past few years. My son and I tried to replicate it when building straw structures out of triangles, you can see our version here, but it wasn't a true geodesic dome. Building a true geodesic dome out of straws involves some math. But don't be scared by that! I promise it's only one simple equation that I you can do with a calculator! I also wanted to create a tutorial that makes it about as easy to make a geodesic dome out of straws as humanly possible. I think I got pretty close.

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Materials

Straight Straws like these For a dome you will need 33 straws (18 of one color and 15 of a second color). For a full sphere you will need 60 Straws (30 of each color)

Chenille Stems AKA Pipe Cleaners

Scissors

Ruler

Instructions
To visualize this project ahead of time here's the basic plan:

1. Cut straws into two different lengths (Strut A & B)

2. Make 6 pentagon sections

3. Join them together in the shape of a dome

Yes, it's that easy.
Note: We will be cutting two sizes of straws. For ease of understanding it's best to cut the different sizes from different colors. That way it's easy to keep track of which are the longer struts and which are the shorter.
Basic Pentagon

Step One Select one color to be Strut A and one to be Strut B. Strut A will be longer than Strut B. For Strut A simply cut each straw in half. Make a total of 35 Strut A's.

Step Two Strut B should be smaller than Strut A by a factor of 0.885. To determine what length to cut Strut B measure Strut A then multiply that number by 0.885. Now you have the size of Strut B. Here's an example:

For an 8" long straw Strut A will be 4" and strut B will be 4" x 0.885 = 3.54". Round up to 3.5" here people, you don't have to be that accurate! Just get close to the ratio. Hint- Cut one strut B length and use it as a guide to cut the rest of the straws to that size.

Step Three Cut a total of 30 Strut Bs.

Step Four Make some pentagons! Strut A will be the outside of each pentagon and Strut B will be the middle sections. Take (1) Strut A and feed a pipe cleaner through it. Bend back the end to secure it in place around the straw. Join additional pipe cleaners on as necessary to make one continuous length of pipe cleaner by twisting the ends of pipe cleaners together tightly.

Step Five Thread 4 more straws onto the pipe cleaners for a total of 5 straws) then bend into the shape of a pentagon and secure the ends together.

Step Six Thread (2) Strut B's onto the long end of the pipe cleaner (adding more pipe cleaners as necessary) then thread the pipe cleaner into an adjacent straw and out the other side.

Step Seven Thread (2) more Strut B's through the pipe cleaner and an adjacent straw.

Step Eight Thread 1 final Strut B onto the pipe cleaner and then secure all Strut B's at the center of the pentagon. It helps to wrap the pipe cleaner around the joint of one pair of strut B's and then wrap it around the second pair. Thread the end of the pipe clearer back into one of the straw struts to conceal it.

Step Nine Make 5 more pentagons as described above. For a full sphere grab a glass of lemonade and make 11 more pentagons!

Make the Dome

Now that you have the basic shape that will form the dome all you need to do is connect them together. For a dome you will need 5 Strut B's to form the base. If you are making a full sphere you can eliminate the extra struts as the pentagons from one side will join the second side of the sphere.

Dome- For ease of reference I have shaded in the center pentagon in this visual tutorial. Trust me, it look more complicated than it is.

Step One Take one pentagon and thread a pipe cleaner through one side, secure at the end. This will be your center pentagon.

Step Two Thread the long end of the pipe cleaner through one Strut B of a second pentagon. Make sure the pointed sides of the shapes are facing OUT. Pull them together.

Step Three Repeat Steps one and two to connect a third, fourth, and fifth pentagon at the joints of the center pentagon. Pull tightly.

Step Four Take the (5) single Strut B's and feed them through the base of the row of pentagon at the bottom, alternating pentagons and struts. Pull tightly.

Sphere

Step One Take one pentagon and thread a pipe cleaner through one side, secure at the end. This will be your center pentagon.

Step Two Thread the long end of the pipe cleaner through one Strut B of a second pentagon. Make sure the pointed sides of the shapes are facing OUT. Pull them together.

Step Three Repeat Steps one and two to connect a third, fourth, and fifth pentagon at the joints of the center pentagon. Pull tightly.

Step Four Repeat Steps one through three to make a second half of a sphere.

Step Five Join the two side together! Thread a pipe cleaner through Strut B of one pentagon on one sphere. Secure at the end.

Step Six Instead of threading single Strut B's around the base as we did to make a dome, you will use the Strut B's of the second sphere as the connectors. Thread the pipe cleaner through one Strut B on the second sphere half. The second sphere half should be positioned facing the opposite direction of first half. Continue threading pipe cleaners through the bottom loop of both halves to form a complete sphere. Secure the starting and ending points together.

Why are geodesic dome so fascinating to designers?
You may think it looks complicated and but it's actually really easy to make both the dome and sphere once you see the pattern. In all fairness I built this dome and sphere. My kids are just a wee bit young to tackle this project, although my baby had fun trying to thread pipe cleaners through straws... I know it takes some time but breaking this project down to basic shapes made it very easy to build and understand. Here's my son with the dome so you can see how big it actually is.
The Math Behind the Dome
About Geodesic Domes
*Theoretically a 1-frequency dome is possible but it makes the shape of an icosahedron, which doesn't quite have a spherical shape. More on Domes
Geodesic domes are very efficient structures. Triangles are inherently stable shapes, so creating structures out of interlocking triangles makes very strong, yet incredibly lightweight structures that can be adapted on a small level, like our project here, to a massive level as in the Montreal Biosphere constructed for the 1967 World's Fair.

The first step in designing a geodesic dome is to determine the frequency of the dome, denoted by the letter V. At a minimum you need a frequency of 2*. In simplified terms it means you need 2 different strut or chord lengths. The more struts/chords you have the more rounded the final shape will be. The straw geodesic dome/sphere here is 2V. 3V and 4V domes are also very popular t make. If you want to build one or even a more complex dome check out this geodesic dome calculator.

If you can't get enough Geodesic domes here are a few more places you should check out:

Looks Like

Buckminster Fuller. Of.course. In the architecture world Bucky Fuller is a legend. He ranks up there with Frank Lloyd Wright and Le Corbusier. Are you familiar with him? Well you are now. He didn't invent the Geodesic Dome, it was actually invented by Walther Bauersfeld, but Bucky Fuller made it a household word. His love of geodesic domes has spread to generations of young architecture students in the past half-century. He saw the potential in geodesic triangulated structures to build strong yet lightweight super structures was awarded patents for a number of his designs. Bucky Fuller is also renowned in design circles for his forward thinking philosophies. He designed the Dymaxion House in the 1940s to be a mass produced type of housing. Imagine if houses were made like cars in factories. In my opinion this makes him the predecessor to the pre-fab home movement. He also developed theories about the world's limited amount of natural resources and was a environmental visionary. For these reasons and more he is a hero of mine and many, many other designers.
P.S. This would make a fantastic STEM project for older kids! If you enjoyed this engineering project for kids check out Tensile Bubbles and Paper Building Blocks for a more structural fun.
Conclusion
Don't miss out on more STEM projects here on Babble Dabble Do! Your child's inner Buckminster Fuller thanks you! Subscribe below, like us on FB, or follow along on Pinterest! Visit Babble Dabble Do's profile on Pinterest.
My father the architect was visiting us this week and helped us make our geodesic straw dome. His verdict on this project? "Incredible!" He was impressed at how we broke down the construction into a few simple repeatable steps using very basic materials. You can do it too! Maybe you want to make one to explore geometry with kids or engineering ideas or maybe just for decorative purposes, I mean who wouldn't want to hang a geodesic sphere from the ceiling? Ha! In any case I hope you are inspired to try making one and join the ranks of Bucky Fuller fans worldwide!

Now that you are pumped about geometry here are three amazing toys you might want to consider adding to your collection, they might just turn your kids into the next Bucky Fuller:

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Engineering for Kids: Straw Geodesic Dome & Sphere - Babble Dabble Do

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For our third and final straw project (for now....) I'm completely geeking out with this straw geodesic dome & sphere. I have pretty much lived and breathed architecture my entire life (my father is an architect as well) so I have been familiar with geodesic domes practically since I learned to walk...okay maybe not quite that long but you get the picture.....so I'm really curious if everyone else out there is as fascinated by them as me.

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Mathematics Assessment Project

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During the lesson, students first work individually to review their initial work. They then work in pairs to compare their approaches to the task, choosing a strategy that will produce an improved model and together implement that strategy. Students next review some sample work before discussing as a class the strengths and weaknesses of different approaches to the modeling task.

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Ideas

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Celebrate the colors of fall with this leaf tessellation art project! I think that tessellating shapes are fascinating, and such a fun mix of math and art. A tessellation is defined as a geometric shape that can be arranged in a repeating pattern with no gaps between the tiles and no overlapping. In this post, I'll show you...

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Frugal Fun For Boys and Girls - Engaging activities for kids of all ages.

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Frugal Fun for Boys and Girls is a place to find fun activities that kids will LOVE: LEGO building ideas, STEM activities, and play ideas for active kids!

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9 Strategies for Motivating Students in Mathematics

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9 Strategies for Motivating Students in Mathematics

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9 Strategies for Motivating Students in Mathematics

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Keep your high school math students engaged with these techniques.

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Books and resources

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The DAoM library includes 11 inquiry-based books freely available for classroom use. These texts can be used as semester-long content for themed courses ( geometry, music and dance, the infinite, games and puzzles), or individual chapters can be used as modules to experiment with inquiry-based learning and to help supplement typical topics with classroom tested, inquiry based approaches ( e.g. rules for exponents, large numbers, proof). The topic index provides an overview of all our book chapters by topic.

For a list of other inquiry-based learning materials (Calculus, Pre-Calculus, Algebra, K-12, etc.) take a look at a list of IBL materials we're aware of, we collected under Resources.

Book Titles

Reviews & Accolades

"...I find the material to be excellent in all respects. This is a great idea for a project, and the people involved are clearly able to execute their vision... I think that the final collection of Discovering the Art of Mathematics books will be a resource that instructors have needed for a long time. These books will have a strong positive impact on the way mathematics is taught to non-science majors at a wide variety of colleges."
- David Farmer, Director of Programs, American Institute of Mathematics

"The general approach is amazing. I love how you get to touch upon and substantially develop so much modern analysis, in this unassuming volume for liberal arts students. I also found the way you introduced the concepts very well thought-out... The one guidebook I read does a great job at putting the student at the center of the action, and encourages independent inquiry. I was impressed by how much actual mathematics there was in the whole volume, as opposed to some other math for liberal arts texts that are a lot less substantial in level and content. I think the intellectual merit of this work is very high, and it is a very valuable endeavor. Liberal arts students should not be left to only learn about watered-down pizza math. They should be introduced to the most beautiful and powerful ideas of mathematics; this project is attempting to do precisely that... By bringing in the human components of mathematics, the projects actually help students from underprivileged and underrepresented groups feel more welcome in what is generally regarded as a cold, austere science."
- Gizem Karaali, Assistant Professor of Mathematics, Pomona College and Co-Editor of the Journal of Humanistic Mathematics

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The DAoM library includes 11 inquiry-based books freely available for classroom use. These texts can be used as semester-long content for themed courses (e.g.

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Creative Mathematics Teaching & Learning

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Creative Mathematics Teaching & Learning

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On this website you will find creative Mathematics teaching learning resources for secondary classes.

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eTwinning Project

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The main elements of the kinesthetic intelligence are control of one's bodily motions and the capacity to handle objects skillfully, as well as the ability to process information through the sensations in the bodies. Students with this type of intelligence should learn better by involving muscular movement (e.g.

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KIDS STEM ACTIVITIES FOR KIDS SERIES A-Z IDEAS

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KIDS STEM ACTIVITIES FOR KIDS SERIES A-Z IDEAS

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A-Z KIDS STEM ACTIVITIES SERIES FOR KIDS

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Kids are curious and always looking to explore, discover, check out, and experiment to discover why things do what they do, move as they move, or change as they change! My son is now 13, and we started with simple science activities around three years of age with simple baking soda science.

Here are great tips for making science experiments enjoyable at home or in the classroom.

Safety first: Always prioritize safety. Use kid-friendly materials, supervise the experiments, and handle potentially hazardous substances yourself.

Start with simple experiments: Begin with basic experiments (find tons below) that require minimal setup and materials, gradually increasing complexity as kids gain confidence.

Use everyday items: Utilize common household items like vinegar and baking soda, food coloring, or balloons to make the experiments accessible and cost-effective.

Hands-on approach: Encourage kids to actively participate in the experiments rather than just observing. Let them touch, mix, and check out reactions up close.

Make predictions: Ask kids to predict the outcome before starting an experiment. This stimulates critical thinking and introduces the concept of hypothesis and the scientific method.

Record observations: Have a science journal or notebook where kids can record their observations, draw pictures, and write down their thoughts. Learn more about observing in science. We also have many printable science worksheets.

Theme-based experiments: Organize experiments around a theme, such as water, air, magnets, or plants. Even holidays and seasons make fun themes!

Kitchen science: Perform experiments in the kitchen, such as making ice cream using salt and ice or learning about density by layering different liquids.

Create a science lab: Set up a dedicated space for science experiments, and let kids decorate it with science-themed posters and drawings.

Outdoor experiments: Take some experiments outside to explore nature, study bugs, or learn about plants and soil.

DIY science kits: Prepare science experiment kits with labeled containers and ingredients, making it easy for kids to conduct experiments independently. Check out our DIY science list and STEM kits.

Make it a group effort: Group experiments can be more fun, allowing kids to learn together and share their excitement. Most of our science activities are classroom friendly!

Science shows or documentaries: Watch age-appropriate science shows or documentaries to introduce kids to scientific concepts entertainingly. Hello Bill Nye and the Magic Schoolbus! You can also check out National Geographic, the Discovery Channel, and NASA!

Ask open-ended questions: Encourage critical thinking by asking open-ended questions that prompt kids to think deeper about what they are experiencing.

Celebrate successes: Praise kids for their efforts and discoveries, no matter how small, to foster a positive attitude towards science and learning.
Free Science/STEAM Cards- Instant Download today!
Free Science Journal Worksheets

Create a science notebook with these easy-to-use science worksheets to accompany any experiment. Grab your free science process journal pack!

Go ahead and introduce the scientific method and get kids started recording their observations and making conclusions. Read more about the scientific method for kids .

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50 Fun Kids Science Experiments - Little Bins for Little Hands

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Over 50 fun science experiments for kids! Simple science activities you can do at home or in the classroom.

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Pythagorean echoes in geometry, archaeology, theatre, myth...

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Pythagorean echoes in geometry, archaeology, theatre, myth...

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Pythagorean echoes in geometry, archaeology, theatre, myth...

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Christmas lesson ideas (and resources)