Solving Systems by Elimination
Students will solve systems of linear equations by adding or subtracting equations to eliminate a variable.
Key Questions
- Justify why multiplying an entire equation by a constant does not change its solution set.
- Compare the elimination method to the substitution method, identifying scenarios where each is preferred.
- Design a strategy for choosing which variable to eliminate and how to achieve opposite coefficients.
Ontario Curriculum Expectations
Suggested Methodologies
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5E Model
The 5E Model structures lessons through five phases (Engage, Explore, Explain, Elaborate, and Evaluate), guiding students from curiosity to deep understanding through inquiry-based learning.
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