Enigma — Can You Crack the Code?
Break four intercepted messages: a shift cipher (brute force), a substitution cipher (frequency analysis with real English data), a keyword cipher (repeats and common…
Home › Interactives › Mathematics › Ratio Challenge
Mathematics · Number
A simple randomised ratio challenge where students practise simplifying ratios, finding equivalent ratios and solving missing-value ratio questions using visual ratio bars.
Start a free 30-day trial with class codes and progress tracking, or talk to us about your school's licence.
Break four intercepted messages: a shift cipher (brute force), a substitution cipher (frequency analysis with real English data), a keyword cipher (repeats and common…
An active lab applying ratios, rates, percentages and percentage change to current Tour de France and weather data.
A guided Year 8 investigation covering ratio simplification, scaling, unit rates, percentages, discounts and percentage change in real-world contexts.
Practise scientific numeracy with continuously randomised questions covering SI units, metric conversions, concentrations and molar calculations. Includes adjustable…
A randomised 10-question challenge where students calculate area for triangles, parallelograms, trapeziums, rhombuses, kites and composite shapes, with new numbers each…
A guided Year 8 investigation where students derive area formulas by rearranging parallelograms, duplicating trapeziums, using diagonals for rhombuses and kites, and…
Ratio Challenge is one of the licensed interactives in The Education Universe. This page describes it; teachers use it in lessons and classes with a licence or the free trial.