Twenty word problems, one T. rex, and a built-in check: if a part of the picture has no matching answer, students know to look at their working again. Each problem is one step: find 10%, 25%, 50% or 75% of a quantity, in money, length and everyday contexts.

How it runs

One or two lessons of 45–60 minutes. Start with the learn page and the benchmark percentages (10% means divide by 10, 25% divide by 4, 50% halve, 75% is three quarters), work through the examples on the slides, then students solve the 20 problems and colour the picture. Finish with the "Where do we see percentages?" page.