Equivalent fractions – balance scale matching game

MathematicsNumbers & ArithmeticAges 11–12

A card game: drag cards (numbers or shaded pictures: circles, rectangles, rows of hexagons) onto the two pans of a balance scale to compare them; the scale shows at once whether they are equal or which side is greater. Match an equal pair correctly and the cards move to the matched row, earning points and stars. Eight levels get gradually harder, the last two using mixed numbers, with Check / Try again / Show answer buttons and an optional timer. Based on the "Fraction Matcher" simulation by PhET Interactive Simulations, University of Colorado Boulder (CC BY 4.0); rewritten.

Lesson: Comparing fractions