Proportion
Changing Ratios
Interactive ratio-changing coin problems with non-algebraic scaling diagrams and algebraic solutions.
Ratio Scaling
Interactive ratio scaling gap-fill task converting between simplest form, unit ratios, totals and differences.
Ratio Scaling Workshop
CPD workshop materials on ratio, scaling and connected proportional reasoning.
Keeping Things in Proportion
Workshop slides on proportional reasoning and interweaving, with tasks across ratio, fractions, decimals and percentages.
Interwoven Proportion
A proportion task connecting ratio tables, graphs and equivalent multiplicative relationships across different contexts.
