This activity presents an exercise in strategic thinking, accessible to lower secondary students (but hinting at the more advanced mathematics of sorting algorithms that they might meet if continuing to study maths at A-level). It is aimed at Key Stage 3 students.
Detailed teachers' notes for this activity are available on our NRICH website.
Further information
If you're finding hard to get started, try looking at this hint.
Detailed teachers' notes for this activity are available on our NRICH website.
