Your turn — Investigate one colour

Choose a red, light green, pink or yellow rod.

Using only rods of that colour, investigate target rods that are at least as long as your chosen rod.

• Which target rods can you make exactly?
• Which can you not make exactly?
• Record the equivalences you find using colour letters.

If a target cannot be made exactly, how close can you get without going past it? What is left over?

Organise your results so somebody else can see the pattern.