Allow students who have a clear understanding of the content thus far in the unit to work on Gallery problems of their choosing. You can then use this time to provide additional help to students who need review of the unit's concepts or to assist students who may have fallen behind on work.
Dog and Cat
Students refer to a pre-made graph showing how much dry food a dog eats and how much dry food a cat eats over the same time period. They analyze the graph and list specific information they can conclude from the graph.
Faucet Rate Problem
Students perform research on the Internet about standard water flow rates of bathroom faucets in the United States. They test faucets at home or at school and prepare responses to the questions.
Shower versus Bath
Students will use their knowledge of rates to figure out which uses less water, a shower or a bath.
Laps, Miles, Kilometers
Students use rates to convert measures given in laps, kilometers, and miles. They justify their reasons for ordering distances given in these three units.
Students write and use formulas for heights of stacks of paper. They practice writing rates for h in terms of n and for n in terms of h.
Students use a triple number line to convert among the units laps on a track, kilometers, and miles. Given one number line, they mark two other number lines to show equal distances in the units.
This problem begins with a video of a cube container being filled with colored water. Students determine what information they'd need in order to figure out the volume of water in the cube at any time.