1 out of 3
In how many ways can you fit all three pieces together to make shapes with line symmetry?
In this article for primary teachers we consider in depth when we might reason which helps us understand what reasoning 'looks like'.
1 out of 3
There are eight clues to help you find the mystery number on the grid. Four of them are helpful but the other four aren't! Can you sort out the clues and find the number?
1 out of 3
There are three versions of this challenge. The idea is to change the colour of all the spots on the grid. Can you do it in fewer throws of the dice?
1 out of 3
What information do you need to know to set up a healthy snack shop for your class?
3 out of 3
Using different numbers of sticks, how many different triangles are you able to make? Can you make any rules about the numbers of sticks that make the most triangles?
2 out of 3
Choose four different digits from 1-9 and put one in each box so that the resulting four two-digit numbers add to a total of 100.
1 out of 3
Watch this animation. What do you see? Can you explain why this happens?
1 out of 3
2 out of 3
Just four procedures were used to produce a design. How was it done? Can you be systematic and elegant so that someone can follow your logic?
