Age 7 to 11 Visualising at KS2 These upper primary tasks all specifically draw on the use of visualising. Which pairs of cogs let the coloured tooth touch every tooth on the other cog? This problem is designed to help children to learn, and to use, the two and three times tables. Becoming confident and competent as a problem solver is a complex process that requires a range of skills and experience. Is problem solving at the heart of your curriculum?

Factor Lines Age 7 to 14 Challenge Level: Use your addition and subtraction skills, combined with some strategic thinking, to beat your partner at this game. Strike it Out Age 5 to 11 Challenge Level: What do you think is happening to the numbers? Can you arrange these in the five boxes to make four-digit numbers as close to the target numbers as possible? Imagine a pyramid which is built in square layers of small cubes.

Reasoned Rounding live Age 7 to 14 Challenge Adxition She arranged the cards into 6 unequal piles where each pile added to the same total.

# Place Value KS2 :

Can you use the information to find out which cards I have used? Age 7 to 11 Visualising at KS2 These upper primary tasks all specifically draw on the use of visualising.

Can you make square numbers by adding two prime numbers together? What could Lolla have paid for the balloon? What are all the different possible answers?

Read Lynne’s article which discusses the place of problem solving in the new curriculum and sets the scene. Register for our mailing list. How about the shaded numbers in the other squares? Can you work out some different ways to balance this equation?

What do you notice? 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.

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. If you know the numbers that come out, what multiplication might be going on in the box?

Four Go Age 7 to 11 Challenge Level: Consecutive Numbers Age 7 to 14 Challenge Level: Fifteen Cards Age 7 to 11 Challenge Level: Age 5 to 7 Reasoning and Convincing at KS1 The tasks in this collection can be used to encourage children to convince others of their reasoning, using ‘because’ statements.

The sum of the numbers inside it is written on each envelope. Use the information to find out what the three numbers were.

Can you put the numbers 1 to 8 into the circles so that the four calculations are correct? A Year of Investigations Age 5 to 14 This article for teachers suggests ideas for activities built around 10 and Nric operations signs probblem the numbers 3 4 5 6 to make the highest possible number and lowest possible number.

How many different trains can you make? This is an adding game for two players. The great planetary explorer Nico counted 52 legs. The picture shows a lighthouse and many underwater creatures.

## Multiplication and Division KS2

Lolla bought a balloon at the circus. Can you figure out what they were? Using the information given, can kss2 replace the stars in the calculation with figures? This dice train has been made using specific rules.

## Problem-solving Skills

How many different ways can you do it? Can you sort out which is which? What happens when you enter different numbers?