A colourful card matching task in which students interpret practical scenarios involving proportional relationships in terms of ratios and the total numbers of equal parts involved in them.

In pairs, they move the cards/ paper slips around and discuss how to match four ratios (white) with the four statements about parts (blue) and the four practical situations and actual amounts which correspond with them (yellow).

Some of the details in the scenarios could be adapted to suit their local environment or learning context. The sheet could be printed out for each student to self-check after the activity, and to keep for later reference.