How many moves does it take to swap over some red and blue frogs? Do you have a method?
Can you picture how to order the cards to reproduce Charlie's card trick for yourself?
Different combinations of the weights available allow you to make different totals. Which totals can you make?
Starting with two basic vector steps, which destinations can you reach on a vector walk?
Have you ever wondered what it would be like to race against Usain Bolt?
Charlie likes to go for walks around a square park, while Alison likes to cut across diagonally. Can you find relationships between the vectors they walk along?
How can Agent X transmit data on a faulty line and be sure that her message will get through?
Generate three random numbers to determine the side lengths of a triangle. What triangles can you draw?
What shapes should Elly cut out to make a witch's hat? How can she make a taller hat?
In this problem, we define complex numbers and invite you to explore what happens when you add and multiply them.
Imagine a very strange bank account where you are only allowed to do two things...