Week 2 Challenge Review, and end of the stupid challenge idea

The Counting On activity went well, and we used blu-tac to create the giant graph on the wall. We did run out of room for the prime numbers column and had to overlap.

Edit: Here is a picture of the graph. In future I would consider using a large floor space instead of the wall, so that we could fit all the prime numbers in properly! And discuss what would happen to the graph if we did more numbers. And if I put it on the wall again I would include labelled axes.

They loved the active "yes or no" categorising game. Each student had a number, and two ends of the room had "Yes" and "No" up on the wall. I called out questions like "Are you a prime number?", "Are you an even number?", "Are you divisible by 3?", "If you add 5 to yourself, do you have 4 as a factor?" and so on. It provided a good opportunity when someone was unsure to ask the whole class relevant questions like "How can you tell if a number is divisible by 3". And they loved it.