Unit 2, Lesson 3
Writing Equations to Model Relationships (Part 2)
Algebra 1
Pre-Lesson: See Extra Support Materials for Algebra 1, Unit 2, Lesson 3.
Preparation
Lesson Narrative
In this lesson, students continue to develop their ability to identify, describe, and model relationships with mathematics.
Students are given tables of values and asked to generalize the relationship between pairs of quantities—by studying the values and looking for patterns (MP8), and by interpreting them in context (MP2). Some of the relationships they encounter here are novel or otherwise require perseverance and careful reasoning to pin down (MP1).
Math Community
The goal of today’s exercise is to use the suggestions from the previous exercise to revise the “Norms” sections of the Math Community Chart and to invite students to reflect on one norm that will be a strength for them. Both activities begin to build shared accountability for and investment in the classroom norms.
- Identify and describe (orally and in writing) patterns in tables of values and in calculations.
- Use observed patterns to generalize the relationships between quantities and to write equations.