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Sticky triangles

7 to 11

Can you continue this pattern of triangles and begin to predict how many sticks are used for each new "layer"?

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Part 2: Lucky dip

11 to 14

Julia introduces the 'Lucky Dip model', and the accompanying interactivity, which take into account the impact of herd immunity.

article

Sanjay Joshi, age 17, The Perse Boys School, Cambridge followed up the Madrass College class 2YP article with more thoughts on the problem of the number of ways of expressing an integer as the sum of odd numbers.

eyfs_activity

Wrapping parcels

Age

3 to 5

In this activity, children have the opportunity to wrap some toys and to measure and discuss the size of the box or wrapping paper that they will need.

article

Many ideas with a few cubes

5 to 11

This short article outlines a few activities which make use of interlocking cubes.

article

Take some ... counters

5 to 11

This article for primary teachers outlines how using counters can support mathematical teaching and learning.

$\engNRICH$

page

engNRICH

engNRICH is the area of the stemNRICH Advanced site devoted to the mathematics underlying the study of engineering

problem

Differs

11 to 14

Choose any 4 whole numbers and take the difference between consecutive numbers, ending with the difference between the first and the last numbers. What happens when you repeat this process over and over again?

problem

Polydron

7 to 11

This activity investigates how you might make squares and pentominoes from Polydron.

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Slippery snail

7 to 16

A game for two people, who take turns to move the counters. The player to remove the last counter from the board wins.

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Sticky triangles

Part 2: Lucky dip

Ways of summing odd numbers

Wrapping parcels

Many ideas with a few cubes

Take some ... counters

engNRICH

Differs

Polydron

Slippery snail