This 100 square jigsaw is written in code. It starts with 1 and ends with 100. Can you build it up?
Explore when it is possible to construct a circle which just touches all four sides of a quadrilateral.
I've made some cubes and some cubes with holes in. This challenge invites you to explore the difference in the number of small cubes I've used. Can you see any patterns?
What can you see? What do you notice? What questions can you ask?
Have a go at creating these images based on circles. What do you notice about the areas of the different sections?
What's the largest volume of box you can make from a square of paper?
How many pairs of numbers can you find that add up to a multiple of 11? Do you notice anything interesting about your results?
If you have a large supply of 3kg and 8kg weights, how many of each would you need for the average (mean) of the weights to be 6kg?
How will you complete these interactive Venn diagrams?
Can you find a reliable strategy for choosing coordinates that will locate the treasure in the minimum number of guesses?
