Choose four of the numbers from 1 to 9 to put in the squares so that the differences between joined squares are odd.
These pieces of wallpaper need to be ordered from smallest to largest. Can you find a way to do it?
How many legs do each of these creatures have? How many pairs is that?
Here's a very elementary code that requires young children to read a table, and look for similarities and differences.
Here are shadows of some 3D shapes. What shapes could have made them?
As you come down the ladders of the Tall Tower you collect useful spells. Which way should you go to collect the most spells?
If there are 3 squares in the ring, can you place three different numbers in them so that their differences are odd? Try with different numbers of squares around the ring. What do you notice?
This problem looks at how one example of your choice can show something about the general structure of multiplication.
This article for primary teachers discusses how we can help learners generalise and prove, using NRICH tasks as examples.
