### MATHS PROBLEM SOLVING KS1 NRICH

The tasks in this collection encourage children to create, recognise, extend and explain number patterns. Can you explain why? In this town, houses are built with one room for each person. This challenge involves eight three-cube models made from interlocking cubes. Register for our mailing list.

In this article, Jennie suggests that we can support this process in three principal ways. These upper primary tasks all specifically draw on the use of visualising. The lower primary tasks in this collection could each be solved by working backwards. Getting the Balance Age 5 to 7 Challenge Level: Try continuing these patterns made from triangles. There are three versions of this challenge. How many new shapes can you make?

Ip Dip Age 5 to 11 Challenge Level: Robot Monsters Age 5 to 7 Challenge Level: Age 7 to 11 Reasoning and Convincing at Matjs The tasks in this collection can be used to encourage children to convince others matjs their reasoning, by first convincing themselves, then a friend, then a ‘sceptic’. Domino Sorting Age 5 to 7 Challenge Level: Investigate the total number of sweets received by people sitting in different positions.

This challenge is about finding the difference between numbers which have the same tens digit.

## Position and Direction KS1

What do you notice? Find all the numbers that can be made by adding the dots on two dice. How many new shapes can you make? The sum of each side of the triangle should equal the number in its centre. The tasks in this collection encourage lower primary children to nrihc and generalise. This article offers you practical ways to investigate aspects of your classroom culture.

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## Patterns and Sequences KS1

Ordering Cards Age 5 to 11 Challenge Level: Triangle Animals Age 5 to 7 Challenge Level: If there are 3 squares in the ring, can you place three different numbers in them so that their differences dolving odd? At the beginning of May Tom put his tomato plant outside.

How many different ways can you find to join three equilateral triangles together? Can you choose sets of numbers to collect so that you spin six numbers belonging to your sets in as few spins as possible?

# Counting and Ordering KS1 :

There are some families of seven people living in the town. Solvng for KS2 children which focus on working systematically. Buzzy Bee was building a honeycomb. Sweets are given out to party-goers in a particular way.

Domino Sequences Age 5 to 7 Challenge Level: Teddy Town Age 5 to 14 Challenge Level: Two Spinners Age 5 kss1 7 Challenge Level: Are these statements relating to odd and even numbers always true, sometimes true or never true? These upper primary tasks all specifically draw on the use of visualising. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

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Altogether there were 8 heads and 22 feet. Register for our mailing list. The fourth article builds on the third by discussing what we mean by problem-solving skills and how NRICH can help children develop these skills. Which comes priblem in each pattern of dominoes?

The tasks in this collection encourage upper primary children to conjecture and generalise. One of Thirty-six Age 5 to 7 Challenge Level: Make one big triangle so the numbers that touch on the small triangles add to Age 5 to 7 Conjecturing and Generalising at KS1 The tasks in this collection encourage lower primary children to solvinv and generalise.