HSE Math: Unit 3

students and teacher working together at a computer

Rate of Change/Starting Amount (lesson)

Rate of change is a fundamental concept when working with functions. This lesson focuses students on function tables, looking for patterns and making observations. From there, we connect what students see to how the things they observe appear in function rules, and we introduce the vocabulary of “rate of change” and “starting amount,” which can later be referred to as “slope” and “y-intercept.” Before we talk about slope and y-intercept though, we want students to have a flexible understanding of how to identify rate of change and starting amount in tables, rules, and graphs, and to know how they can use these concepts in solving problems.

Read the full Unit 3 document.