1 out of 3
Explore some of the different types of network, and prove a result about network trees.
2 out of 3
Watch these videos to see how Phoebe, Alice and Luke chose to draw 7 squares. How would they draw 100?
2 out of 3
Many numbers can be expressed as the difference of two perfect squares. What do you notice about the numbers you CANNOT make?
2 out of 3
Four friends must cross a bridge. How can they all cross it in just 17 minutes?
1 out of 3
Think of a number and follow my instructions. Tell me your answer, and I'll tell you what you started with! Can you explain how I know?
3 out of 3
Things are roughened up and friction is now added to the approximate simple pendulum
2 out of 3
Is there an efficient way to work out how many factors a large number has?
2 out of 3
Aisha's division and subtraction calculations both gave the same answer! Can you find some more examples?
3 out of 3
In the café, your ice cream selection can't include a combination that someone else has chosen. What could these seven children have chosen?
1 out of 3
On the planet Vuv there are two sorts of creatures. The Zias have 3 legs and the Zepts have 7 legs. The great planetary explorer Nico counted 52 legs. How many Zias and how many Zepts were there?
