Unit 5, Lesson 14
Systems of Equations
Accelerated 7
Preparation
Lesson Narrative
This lesson formally introduces the concept of a system of equations with different contexts. Students recognize that they have found solutions to systems of equations using graphs in the past few lessons by examining the intersection of graphed lines. Then students consider a system that has no solution and recognize that a system with no solution is represented by parallel lines. As students write equations for a situation, they must reason abstractly and quantitatively (MP2).
- Comprehend that solving a system of equations means finding values of the variables that make both equations true at the same time.
- Coordinate (orally and in writing) graphs of parallel lines and a system of equations that has no solutions.
- Create a graph of two lines that represents a system of equations in context.
Let’s learn what a system of equations is.
Required Preparation
Provide access to straightedges for students to accurately draw graphs of lines.
For the digital version of the activity, acquire devices that can run the applet.
For the digital version of the activity, acquire devices that can run the applet.