In this FREE online interactive simulation provided by PhET, developed by the University of Colorado, students will explore unit rates through the process of buying goods. Students will explore how shopping uses unit rates to determine the price of various goods. Students will need a computer, tablet or IPad. These simulations were designed for IPad use. This handout goes directly with the Elab and contains directions on accessing the lab online as well as directions on how to complete the lab. This can be done as whole class, in partners or completely on their own. Students will complete double number lines and fill in boxes with the correct answer after playing on the GoLab space.

Teacher should work through one or two examples with students to get them familiar with lab space. There are 4 sections to this lab labeled as "Challenges". Students will find unit rates, find which product is cheaper, and find the total price of purchase using unit rates and number of items being purchased.