Explaining, convincing and proving
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problemFlorence, Ethan and Alma have each added together two 'next-door' numbers. What is the same about their answers? -
problemLet's investigate triangles
Vincent and Tara are making triangles with the class construction set. They have a pile of strips of different lengths. How many different triangles can they make?
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problemA city of towers
In this town, houses are built with one room for each person. There are some families of seven people living in the town. In how many different ways can they build their houses?
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problemBuilding with solid shapes
We have a box of cubes, triangular prisms, cones, cuboids, cylinders and tetrahedrons. Which of the buildings would fall down if we tried to make them?
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problemCuisenaire counting
Here are some rods that are different colours. How could I make a yellow rod using white and red rods?
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problemDomino sorting
Try grouping the dominoes in the ways described. Are there any left over each time? Can you explain why?
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problemMatching triangles
Can you sort these triangles into three different families and explain how you did it?
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problemTwo-digit targets
You have a set of the digits from 0 to 9. Can you arrange these in the five boxes to make two-digit numbers as close to the targets as possible?
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problemTimes of day
These pictures show some different activities that you may get up to during a day. What order would you do them in?