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Bracelets

Investigate the different shaped bracelets you could make from 18 different spherical beads. How do they compare if you use 24 beads?

Making Cuboids

Let's say you can only use two different lengths - 2 units and 4 units. Using just these 2 lengths as the edges how many different cuboids can you make?

Four Triangles Puzzle

Cut four triangles from a square as shown in the picture. How many different shapes can you make by fitting the four triangles back together?

Treasure Hunt

Age 7 to 14 Challenge Level:

Try to decide which places are good for first guesses.

Once you've got feedback on your first guess identify all the possible places where the treasure could be. What pattern does this make?

Have another guess. Use the feedback to identify all the possible places where the treasure could be.

Now use the feedback from both guesses to find some overlapping points.

Continue in the same way...