This task was developed by the folks at Illustrative Mathematics. High School Equivalency teachers will find it useful when preparing students for the following CCRS standard:

For a function that models a relationship between two
quantities, interpret key features of graphs and tables in terms of the quantities, and sketch graphs showing key features given a verbal description of the relationship.

The task asks students to look at a series of differently shaped vases and consider filling each one up with water at a constant rate. Students have to match a graph to a particularly shaped vase and explain their reasoning. There are more graphs than vases. As a final step, students have to draw a vase for each of the unmatched graphs.