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You can be notified of new events by signing up to our teacher newsletter, or by following us on X (formerly known as Twitter) @nrichmaths. If you have any questions, please email the NRICH Team.

NRICH Live for Primary and Secondary Teachers

Nurturing young problem solvers - offering opportunities for reasoning, convincing and proving

Tuesday 21 January 2025, 16:00-16:50 GMT for Primary teachers
Wednesday 22 January 2025, 16:00-16:50 GMT for Secondary teachers

Reasoning, convincing and proving are at the heart of mathematics. Mathematicians are not satisfied by vague assertions that something seems to be true, they need to be convinced that there is no doubt.

Join Charlie and Liz to consider how our classrooms can offer learners opportunities to construct reasoned arguments, to convince themselves and then convince each other, rather than simply depending on the teacher for mathematical justifications.
These will be the fifth webinars in our and Developing Mathematical Thinking series.
You may like to watch the recordings of our first four webinars before attending the final one in this series:
Please follow the links below to book via Eventbrite:

Primary teachers - Tuesday 21 January
Secondary teachers - Wednesday 22 January

Future NRICH Live Events for Teachers
More information and booking details will be available nearer the time. The resources from previous NRICH Live events, together with video recordings, are available .
You may wish to save the provisional dates below, when you will be able to join members of the NRICH team online for a chance to work on some problems from their latest features. All events will take place from 16:00 to 16:50 (UK time).

The resources from previous NRICH student webinars, together with video recordings, are available
Nurturing curious problem solvers

Tuesday 11 March 2025 for Primary teachers
Wednesday 12 March 2025 for Secondary teachers

Nurturing resourceful problem solvers

Tuesday 6 May 2025 for Primary teachers
Wednesday 7 May 2025 for Secondary teachers

Nurturing resilient problem solvers

Tuesday 17 June 2025 for Primary teachers
Wednesday 18 June 2025 for Secondary teachers

Student Webinars

Throughout the year, NRICH often contributes to the Cambridge Festival, Maths Week England and Maths Week London, as well as a few other events for students. When dates are confirmed, they will be listed here along with links to booking details. If you would like to be notified of the dates of future student webinars, please register for our newsletter and/or follow us on X (formerly known as Twitter).

School-run Maths Clubs, Maths Fairs and Family Events

Based on the popular resources enjoyed by students attending our NRICH Roadshows, these free resources enable schools to plan and deliver their own maths fairs and maths days for 5-16 year-old students (we've even included a helpful spreadsheet to support planning!).

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Events for teachers and students | NRICH

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Tuesday 21 January 2025, 16:00-16:50 GMT for Primary teachers Wednesday 22 January 2025, 16:00-16:50 GMT for Secondary teachers

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YEARS: 5-6

Help an archer to hit an apple with his arrow by building two fractions that equal one whole.

Complete the numerators of both fractions (they may have fixed denominators). For example, work out how many quarters and how many eighths can be added together to total one whole.

Look at fraction bars and a number line to compare the two fractions and their total.

Acknowledgements

This interactive was produced by Education Services Australia.
Metadata © Australian Broadcasting Corporation 2020 (except where otherwise indicated). Digital content © Australian Broadcasting Corporation (except where otherwise indicated). Video © Australian Broadcasting Corporation (except where otherwise indicated). All images copyright their respective owners. Text © Australian Broadcasting Corporation and Education Services Australia is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License (CC BY-SA 4.0).

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Fraction fiddle: Hit the apple - ABC Education

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Help an archer to hit an apple with his arrow by building two fractions that equal one whole.

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Tools

How to
use

Design
your own
school

Incorrect. Check the position of the slider on the number line.
Then try again.

10% is equal to . Move the slider to this position on the
number line. Then select OK.

Incorrect. Move the slider to the position shown on the
number line. Then select OK.

Classrooms will take up 35% of the site. Look at the site plan.
What percentage of the total area of the plan has been filled?
Move the slider to show your answer as a fraction on the
number line. Then select OK.

Incorrect. Move the slider to the position shown on the
number line. Then select OK.

Incorrect. Move the slider to the position shown on the
number line. Then select OK.

Incorrect. Count the number of boxes you've filled for this
area. Then try again by adding or erasing boxes. To erase
a filled box, use the erase tool.

Incorrect. The site plan is made up of 100 boxes. If the library
takes up 4% of the site, how many boxes do you need to fill? Try
again.

Incorrect. The library will take up 4% of the site. Select 4 boxes on
the grid. Then select OK.

Incorrect. Count the number of boxes you've filled for this
area. Then try again by adding or erasing boxes. To erase
a filled box, use the erase tool.

Incorrect. The school site is made up of 100 boxes. If the car park
takes up 12% of the site, how many boxes do you need to fill? Try
again.

Incorrect. The car park will take up 12% of the site. Select 12
boxes on the plan. Then select OK.

The lawn will take up 15% of the site. Show this percentage by
filling in the correct number of empty boxes. Then select OK.

Incorrect. Count the number of boxes you've filled for this
area. Then try again by adding or erasing boxes. To erase
a filled box, use the erase tool.

Incorrect. The school site is made up of 100 boxes. If the lawn
takes up 15% of the site, how many boxes do you need to fill? Try
again.

Incorrect. The lawn will take up 15% of the site. Select 15 boxes
on the plan.Then select OK.

Incorrect. Count the number of boxes you've filled for this
area. Then try again by adding or erasing boxes. To erase
a filled box, use the erase tool.

Incorrect. The school site is made up of 100 boxes. If the canteen
takes up 3% of the site, how many boxes do you need to fill? Try
again.

Incorrect. The canteen will take up 3% of the site. Select 3 boxes
on the plan. Then select OK.

You need to fill all the empty boxes on the site plan. Select
either the toilets or the garden in the notebook.
Then try again.

You need to fill all the empty boxes on the site plan.
Select either the toilets or the garden in the notebook.
Then try again.

You need to fill all the empty boxes on the site plan.
Select either the toilets or the garden in your notebook.
Then try again.

Enter the missing percentages in your notebook. Then select
Check. Remember, the total amount should be 100%.

Incorrect. Remember, each box on the site plan represents 1%. Count
the total number of toilet boxes and the total number of garden boxes
on the plan. Enter each total in your notebook. Then select Check.

Look! I've entered the correct answers in your notebook. Your
design is finished. Select Design your own school to continue.

Incorrect. Remember, each box on the site plan represents 1%. Count
the total number of toilet boxes and the total number of garden boxes
on the plan. Enter each total in your notebook. Then select Check.

Incorrect. Count the number of garden boxes on your plan.
Enter this total in your notebook. Then select Check.

Congratulations! This site plan is finished. Select
Design your own school to continue.

Incorrect. Count the number of toilet boxes on your plan.
Enter this total in your notebook. Then select Check.

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Help a town planner to design two site plans for a school. Assign regions on a 10x10 grid for different uses such as a playground, canteen, car park or lawn. Calculate the percentage of the total site used for each region. Use a number line to display fractions and equivalent fractions.

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The total number of Non-Chinese Speaking (NCS) students in different sectors from pre-school to primary and secondary has increased in the last two decades. Some teachers teaching NCS students mathematics seem to have noticed certain different approaches among those NCS students to numerical calculations and to comprehension of mathematical concepts. Additional support to the mathematical […]

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Measurement Lesson Plans | Measurement Game & Measurement Activities for Students

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Geometry Lesson Plans of Mangahigh - Measurement Game & Measurement Activities for Students. Get your students engaged in shape properties using Mangahigh’s math game ‘Pyramid Panic’. Students start by working with lengths in rectangles and triangles, solving geometric puzzles to escape the pyramid.

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Welcome to the DREME TE project - a collection of free, research-based materials for early childhood teacher educators to support prospective and practicing teachers to promote young children's mathematical learning.

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The deceptively simple act of counting, and developing children’s number sense.

Go to module >

Early learning of geometric ideas, and how things are related in space.

Go to module >

Young children reason about the four operations (yes, even multiplication and division!).

Go to module >

Making sense of and describing patterns paves the way for early algebraic reasoning.

Go to module >

Is it longer? Heavier? How can we figure this out? Building from children's ideas about measurement & data.

Go to module >

These overview resources provide background and span the content of our other modules.

Go to module >

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Get answers to some of the questions we at DREME TE get asked the most often

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數學 探險趣是一個單純分享數學合作探索教學模式、數學佈題引導、數學遊戲融入的平台。希望透過分享與對話讓更多親師生對於數學有更多元的感受。歡迎大家一起跟著我探險趣~~~

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Today, few people make software.

And even fewer make edtech. What would happen if millions of educators and students started building tools for their own contexts?

Tools that Save Time

From IEPs to emails, teachers spend hours on paperwork. Teachers are building tools to save time so they can focus on what matters.

Tools to Empower Better Design

Get tailored help with idea generation, creative brainstorming, and designing project-based experiences. Start from scratch or remix existing tools to fit your context.

Tools for Students to Explore

Share purpose-built chatbots for knowledge exploration, reinforcement and inquiry-based learning. Have students can also build their own tools to share with their peers.

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Today, few people make software. And even fewer make edtech. What would happen if millions of educators and students started building tools for their own contexts? Tools that Save Time From IEPs to emails, teachers spend hours on paperwork. Teachers are building tools to save time so they can focus on what matters.