Students will consider water levels of various containers and the graphs of their depths plotted against time throughout this worksheet which is very helpful in discussions with your pupils about rates of change.

In section A, learners match 15 containers to their graphs across three questions. The graphs vary from straight lines to curves and a combination of both. All containers start as empty and liquid is poured in at a constant rate.

Next students are given 6 containers and 6 empty axes on which they must draw the depth of the liquid against the time. Then in section C, students are given two graphs that represent the filing of two swimming pools and they will draw a cross-section image of each pool.