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In Christmas of 2012 we made in the School a Christmas tree decorated with origamis and an exposition with origamis constructed by our students.

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My pupils love to descover and learn maths using Origami even though are made of simply folded paper.
they can make regular solids and find symmetries between them.
this is a very interesting art and pleasant.

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I liked the toast tangram and the string art geometrical designs. I am thinking of using string art to produce christmas decoration for the classrooms this year. Also it's very easy to teach symmetry with paper crafts.

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My son loves origami. This is an interesting web site where you can approach to them:
http://en.origami-club.com/

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Explain Maths, Geometry, with crafts it will be a great idea to involve students who don´t want to work or don´t understand Maths.

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Investigating about angles

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Constructing platonic solids in the classroom and find out Euler's Formula
https://www.mathsisfun.com/geometry/model-construction-tips.html

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A good way to show symmetry is paper craft.
http://www.scuolavalore.indire.it/nuove_risorse/definire-quadrilateri-con-le-simmetrie/

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When I teach the symmetry I usually give task to my students to draw Rorschach stains. Then we talk about the meaning of their drawings.

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My students are creating paper snowflakes. This shows me that they have learned symmetry.

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I use A4 paper craft to show simmetry and to construct geometric figures

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I use paper cutouts to show symmetry (snowflakes in particular are always fun).
Another thing I have used is a paper triangle which we cut into squares to prove the formula for the area (we saw how all the little bits also form other squares).

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Teaching symmetry through cutting paper snowflakes in an idea I have been seeing around. I never thought how engaging and successful it would be until I tried it with a class.

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My students always use paper to do geometry. I will probably try to use tangram in this year

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I use rectangle shape cards and cut out 2 small triangles to explain that area of triangle. This same method is used to explain parallelograms and areas.  I also like my students to create their own cube, cuboids shape on card board to have their own cubes that open into nets. They can then discuss the​ different nets but still have the same cube.

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As a matter of fact the following idea is not "Crafts and Maths" but better "Painting and Maths": As I'm explaining the inverse function I often use watercolors.

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Is very good for geometry,

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I used paper and scissors to "discover" square of a binomial formula. I asked to my students last year to build polynomials with legos to understand calculation rules. I use pentaminoes I built some time ago asking them to imagine home many of them exist and challenging to build some solids with them.

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The fold and cut theorem video is awesome. As others have said, with Origami and Tangram we can make very nice things.

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Nice

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i used tangram

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Tangram and origami are very interesting. We used them to make connection between creativity and critical thinking. I also create thaumatropes with students to practice rotation of 2D-object vertically and horizontally.
Examples:
https://www.youtube.com/watch?v=BzQv7hozgHA
https://www.youtube.com/watch?v=A_2TW5X4H6E

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This is my 'dressing ​polyhedra', activitie carried out together with my colleague Art:

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art lab scuola Enrico Fermi Rubiera (RE)

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In collaborazione con la docente di Matematica Prof.ssa Ilenia Melli classe III anno scolastico 2014-2015 L'esperienza sensoriale dello spazio, così come la capacità di immaginarlo, progettarlo e...

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I love origami and I did my practice in math classes.
We also use the videos for "This is math"

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Neste episódio o matemático Rogério Martins faz barquinhos e aviões de papel, algo a que os adultos chamam: Origami. Sim, basicamente vai dobrar papel, mas também vai mostrar-lhe que a geometria do Origami não é uma brincadeira de crianças. E Isto é Matemática!

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The origami are very interesting, I used

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Very interesting , i hope to do origami with my students. I used tangram with them so they could manipolate geometric figure

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It's all amazing! Thanks all of you for resources!

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Together we can spend more quality time free

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I found these crafts very interesting. A great way to teach geometry to my students

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Origamies are nice, I have never tried myself. I will try, also with my students! I have use tangrams.

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I use this activities to understand better the geometry, to compare surfaces and figures.

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Claudia S., Italy
With tangram students can operate with plane figures, compare surfaces of plane figures, perform translation, rotation and tilting , create compositions of isometries

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I used origami with my students for simmetry. I like the idea " clothes".

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https://youtu.be/wR0fK6jsHVc]

Attractive and sophisticated line designs can be produced and created using only a ruler, compass,  pencil, and paper,to observe symetry.

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With my 6 years old pupils we built for our friend "Cat" ( a big dummy in papier machè) belts, scarfs (with  repeated shapes and patterns) and hats (in different dimensions, so pupils have to put them in order, basing on their dimensions)

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geometric carpet

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We use tangram and drawing the nets of various solids and then creating the solid. Dressing Mr. Cube challenge though seems much more fun!

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I like origami, I always tried to  motivated ss to make some by themselves, especially when we learn geometry.

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Reflecting about art and origami I immediately think to an italian artist: Riccardo Gusmaroli. He creates painting works with origami boats. I can't find free to use image so if you want to see same pics use Google. To start a math lesson we could start from his works.

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With mathematical concepts you can design beautiful sculptures, drawings, knitwork, and origami.

Tangram puzzles for solving equations,

Sinking of Battleship is great for practicing Coordinate System,

Making 3D model of  town using network of geometric bodies... When students learn Math at the same time they work on something concrete, it must be success.

One day in year we have Math Night, when students and their parents came to school and playing games, making crafts and learn that Math can be fun.

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It's very useful! I have used it. It's free download software! There are origami, 3D solids, scissors for cutting solids and make its nets, generate 3d objects from patterns and more ideas to learn and fun

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Online Elica Museum. Description of Elica applications and exhibits

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I used origamics when learning the Euler line. It was very interesting!

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We use tangram and paper to make geometrical shapes.

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Math from soap bubbles

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I normally use to explain the calculation of areas and volumens geometric figures on paper for them to cut and after forming shapes ( cone, cylinder, cube,etc) calculate the area and volume measuring ruler said figures.

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All of the proposals you have made represent a great opportunity to prepare some good lessons for many topics. If students are able to create what they are learning, the topic is understood better and it is printed in their minds.
I use tangram to explain Pythagorean theorem and  Special Binomial Products as (a+b)^2 or (a+b)(a-b).

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Uploaded by Maria Petrescu on 2014-10-25.

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We use tangram and origami. Also we use paper models for investigating the sum of inner angles of triangle and quadrilateral.

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Made pyramid to see the hologram
https://play.google.com/store/apps/details?id=com.vyom.hologramprojector

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This is some 'Maths Art' my class made this year. It is  Stunning cm art work and great for teaching  area, multiplication and symmetry. You'll find instructions here.
http://luckytobeinfirst.com/2013/06/ahhhh-summersorta.html

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In the fifth primary we exercised building Tangram and discovering the equivalence between different shapes and designs

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My students use Tangram and Origami

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Here's the result of an activity in my second primary class.

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Origami and also tangrams are great! But I add a few more ideas in everyday objects: pottery and turning to make shapes with rotational symmetry. I will also add this video of a beautiful table: https://ztfnews.wordpress.com/2014/04/21/gira-120-grados-y-mira/

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We can take a piece of paper, a pair of scissors and a pen.
1. we fold the paper into the midle an cut it into two equal pieces.
2. on the one part we wright "1/2"
3. we take the unwritten part , ford it into the midle, cut it and write to the one of the pieces "1/4"
4. We take the unwritten part, ... etc.
Finaly we put the parts all together at shma shape as the initial part.
This is how we can prove that (1/2)+(1/4)+(1/8)+...=1.

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I usually use tangrams to explain the concepts of equivalency and congruency.

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I use legos to solve problems with line segments. I also ask students to design a triangle to realize that the sum of interior angles is always 180°, or to design a parallelogram to realize that its area is the same of a rectangle.

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I often ask students to fold a triangle, as shown on movie (https://www.youtube.com/watch?v=ikcETPAybG8).
That is how they realize that the sum of the interior angles of a triangle is always 180º.
I also do something similar for the external angles.

Sometimes (to study areas) I also propose activities involving origami or the tangram.

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I usually use, as method of understanding geometrical bodies, origami, in order to practice the 8th grade notions: cub and pyramid and cuboid.

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I  usually use origami because it motivates a lot to my alumnos.We do an exhibition of his designs from time to time.

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Tutorial: Origami Bird - Pájaro de papel

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Origami tutorial and video instruction on Origami Spirit. Easy-to-follow instructions to fold an origami bird. Made from a triangle, the bird is simple, eleg...

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In my contry, there are many videos like the one showen. We just need to look for "Isto é matemática" in youtube. Here are some:
https://www.youtube.com/watch?v=7rGTm6aodHA;
https://www.youtube.com/watch?v=Q9drne2s39c, and many more...

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I love origami and I made my students practise with them during the day of science we organized at school last year.

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Math Sweet

Through cookies decoration or small cakes with sugar paste (material very similar to plasticine texture, but edible), you can learn or review some definitions or mathematical concepts.

You can adorn cookies with numbers, with geometric shapes, with sequences of forms, do counts, identify patterns, odd and even numbers, etc.

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I've just shown how I use paper for the powers of two. With paper it's also possible to teach how to find the triangle's significan points

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What has been shown with the cube can be also done with other geometric shapes, like a pyramid or a prism.

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Thanks, I found a video to explain the fractions with lego: https://www.youtube.com/watch?v=fmzg2SplVLM

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Creativity is a very important way to realize a very funny learning. I'm afraid for the quality of the photo..but now we have only a old tablet in class to take photo....
in this photos you can see how we have studied geomatrical figures (with one of two children also perimeter, areas,...) creating a football field with felt

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I with my students, I often used manual activities for introduce concepts of Italian, music and more. I found that this activity  is very motivating for pupils. The matter in which use more practical and operational activities is the geometry. To study the parallel lines and incident lines  we have built small paths .For intersecting lines, we have made with the pizza box two strips that somulavano two roads and on each we put two cars. when the two roads were joined  in one point there clashed, simulating the 'ACCIDENT. For the straight lines parallel we have built a small train track and we did over  going a train so that the children would realize that the distance between the two parallel lines is always the same otherwise the train derailed ....

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I was a child I had a passion for cardboard and decorated every year for Christmas I realized the boxes which then was dressing entirely with decorated paper. I learned to plan my work and predict how I should cut out the lining. Below an image of a design phase of a box-book that one day I would like to do to my students.

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The pi skyline. I used it last year on the pi-day

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Drawing and cutting like that my students quickly learn the Pythagorean Theorem.
I was inspired by the video below. Take a look.
http://utenti.quipo.it/base5/pitagora/bricopitagora.htm

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Crafts are useful to learn geometrical shapes, to find the perimeter and area. The teacher can give a problem solving like something to built in 3 D.

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Super Simple ORIGAMI vs KIRIGAMI Butterfly

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When I face problems on the geometric symmetry in upper secondary classes, I also like to deal with the representation of the Fibonacci series or other symmetrical designs

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Crafts are wonderful tool for me to teach for primary students. Shape, counting, add leaf to flower ...

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It's all amazing! Thanks all of you for resources!

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To commemorate “Pi Day” , it was proposed to students preparing a bookmark involving some curiosity about Pi.Some of the works:

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A view of the works exposition:

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for geometry I use tangram and Moebius.
My pupils loves these activity

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One of the activities we propose in my school to students of the 8º class when we teach ”Isometries”,  is to do a hand work inspired on Escher drawings.

An example of students works:

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These videos give me interesting ideas to teach maths to my students

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I use it for geometry but these resources give me new inspiration. Thank you!

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In my lessons I usually use pentaminos and tangram, when I begin talk about areas and equiestension. My students create images with all the pieces and they are very interested.
One time I did play a painting by Mondrian building lines and geometric shapes with ruler and brackets.
In another lesson  we have built a kite designing the pieces with the tools for technical drawing.
Students learn while having fun and acquire new skills in a practical way.

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Sometimes I use Tangram but I never made Origami in my classroom. When I teach tessellations I usually bring to the classroom Puzzles with Escher images:

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Perimeter Problems and Area Art!

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Free weblog publishing tool from Google, for sharing text, photos and video.

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Engineering a Bridge

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This lesson will involve your students in geometry and measurement as they work as civil engineers to design and build their own bridge.

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We do projects with arts, crafts.

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Math and Kite was one of the several activities in an eTwinning project with my Italian partner.
This is the link of an online magazine ​http://joom.ag/TiyQ about this activity. ou can also watch the video we created about Math-Kite-Paintings-Crafts-Geogebra. What a combination!
And here is another video about a craft for conic sections ( the foci of ellipses) from the same eTwinning project! We had so many ideas and the results were fantastic!

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Math Investigation eTwinning project 2015-2016 Project managers Katerina Atmatzidou, LYKEIO SCHIMATARIOU, GREECE and MATILDE AIMETTA< VALLAURI FOSSANO, ITALY MISSION: KITE "...to become wind to kite and kite for Wind, even when there is no sky.... '" (The. Elytis, Little Nautilus) Art, constructions, History, Music and of course ITC and Math: Geometry and GEOGEBRA An amazing Greek-Italian team of students,who are ready to collaborate.

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tradespeople; tailors

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Ange

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Angela P.,Italy

Last year, for Mother day, students have made a cardboard trapezoidal handbag; they had to measure the sides, the height, use the ruler and then calculate the area and perimeter .It was a 'fun experience and very useful to apply learned concepts and principles and to understand the purpose