Unit 7, Lesson 21
Representing Contexts with Equations
Accelerated 6
Preparation
Lesson Narrative
In this lesson, students consolidate their understanding of solving equations of the form or , where , , and are rational numbers. In this lesson, students choose equations that represent a context and solve it. They critique an incorrectly solved equation and construct an explanation about a correct solution (MP3).
In the optional activities, students have the opportunity to create their own equations for situations and solve them. They reason quantitatively and abstractly as they relate the situation to the variables, terms, and operations in their equations (MP2).
This lesson is optional in this course. It provides opportunities for students to build fluency with writing and solving equations that include negative numbers.
- Coordinate (orally and in writing) verbal descriptions, equations, and diagrams that represent the same situation involving an unknown amount in the context of temperature or elevation.
- Write equations of the form $x+p=q$ or $px=q$ to represent and solve a problem in an unfamiliar context, and present the solution method (using words and other representations).
Let’s write equations that represent situations.
Required Materials
Activity 4
Required Preparation
None