### NRICH PROBLEM SOLVING KS1

At the beginning of May Tom put his tomato plant outside. What different shapes do they make if each part lies in the small squares of a 4 by 4 square? Exploring characteristics of everyday objects and shapes and describing them. Finding All Possibilities Lower Primary These activities focus on finding all possible solutions so working in a systematic way will ensure none are left out. Ladybirds in the Garden Age 5 to 7 Challenge Level: How many ways can you find to do up all the buttons?

If you hang two weights on one side of this balance, in how many different ways can you hang three weights on the other side for it to be balanced? Chairs and Tables Age 5 to 7 Challenge Level: How would you go about finding out its height? Can you match the cards? Number Talks Age 3 to 5 Recognising, creating and describing patterns with numbers. Long Creatures Age 3 to 5 This activity focuses on making long creatures out of card to compare with each other. Five Coins Age 7 to 11 Challenge Level:

In the second article, Jennie offers you practical ways to investigate aspects of your classroom culture and in the third article, she suggests three ways in which we can support children in becoming competent problem solvers. Register for our mailing list. Can you use the information given to find out how many eggs are in each basket?

## Counting and Ordering KS1

What two-digit numbers can you make solvving these two dice? Can you lay out the pictures of the drinks in the way described by the clue cards?

Caterpillars Age 5 to 7 Challenge Level: Robot Monsters Age 5 to 7 Challenge Level: How would you go about finding out its sklving Are these statements relating to calculation and properties of shapes always true, sometimes true or never true? Half Time Age 5 to 11 Challenge Level: Timing Age 3 to 5 Counting and comparing numbers. Frances and Rishi were given a bag of lollies.

# Patterns and Sequences KS1 :

How many trains can you make which are the same length as Matt’s, using rods that are identical? Age 5 to 7 Working Backwards at KS1 The lower primary tasks in this collection could each be solved by working backwards. Choose four of the numbers from 1 to 9 to put in the squares so that the differences between joined squares are odd.

Can you work out where their counters will land? Lee was writing all the counting numbers from 1 to Ladybirds prooblem the Garden Age 5 to 7 Challenge Level: Which numbers of bears can they share so that there are probelm left over?

Addition and Subtraction KS1. KS1 Age 5 to 7 Challenge Level: This project challenges you to work out the number of cubes hidden under a cloth.

Lots of Lollies Age 5 to 7 Challenge Level: My coat has three buttons.

Help share out the biscuits the children have made. These pieces of wallpaper need to be ordered from smallest to largest.

## Working Systematically at KS1

Can you see who the gold kks1 winner is? Place the numbers 1 to 6 in the circles so that each number is the difference between the two numbers just below it.

Wallpaper Age 5 to 7 Challenge Level: Andrew decorated 20 biscuits to take to a party. What questions would you like to ask? How would you find out how many football cards Catrina has collected?

Can you create your own arrangement and investigate the number of circles it needs? There are also nine houses, three of each colour.

How many different triangles can you draw on the dotty grid which each have one dot in the middle?