Step 3 Objective
Try out ideas to find a pattern or solution.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
Examples of what pupils should know and be able to do
Hollow Squares
Here is a hollow square.

- How many pegs form the square on the outside?
- How many pegs are there in the hollow?
- Draw some more hollow squares.
- Investigate.

Examples drawn from Hollow Squares.
Pupils notice that the number of pegs on the outside is always even.