In this learning activity, students review the meaning of “thousandths” by representing decimal numbers using base ten materials. After discussing concerns about heavy backpacks and possible related injuries, students find combinations of backpack items whose total mass is close to, but does not exceed, the recommended maximum mass.
In this learning activity, students use a variety of multiplicative strategies (e.g., using repeated addition, using doubling, using proportional reasoning) to calculate and compare the costs of 24 cans of puppy food at three different stores.
In this learning activity, students are given the distance of a cycling trip (1550 km) and the average distance two cyclists can travel per day (95 km per day). They are asked to determine the number of days the trip will take. The emphasis in this learning activity is on interpreting the problem situation, applying meaningful procedures rather than simply using an algorithm, and making sense of the solution.
Students will use variables is a way to efficiently and generally describe relationships that can also be described using words. They will learn how to solve problems that have 2 or 3 variables.