Unit 5, Lesson 17
Writing Systems of Equations
Accelerated 7
Preparation
Lesson Narrative
In this lesson, students use the Info Gap routine to work together to write systems of equations and solve them.
Two additional optional activities are included. The first optional activity focuses on writing systems of equations from a context and interpreting the meaning of the solution in terms of the context without actually solving the system. The second optional activity offers additional practice identifying the number of solutions for a system, then solving them.
Students must reason abstractly and quantitatively to write a system of equations from a context (MP2). Structure is important when recognizing the number of solutions for a system of equations and solving efficiently (MP7).
- Categorize (in writing) systems of equations, including systems with infinitely many or no solutions, and calculate the solution for a system using a variety of strategies.
- Create a system of equations that represents a situation and interpret (orally and in writing) the solution in context.
Let’s write systems of equations from real-world situations.
Required Preparation
None