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Systematically check a solution in a system. Given a point and a system, the presenter checks to see if the point is a solution to the system. Pupils understand what it means to be a solution to a system. The video shows both algebraically and graphically that the point is a solution to the system of linear equations.
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CCSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Challenge the class to find another system that has the same solution
Classroom Considerations
- Individuals should know what it means for a point to satisfy an equation
- Assumes pupils know how to graph a linear equation
- This video is hosted on YouTube
Pros
- Works each step of the arithmetic involved after the substitution
- Uses colors to highlight the variables in the coordinate pair
Cons
- None