Put all that algebra learning to use! Using algebraic strategies, learners solve three-variable systems. They then use the three-variable systems to write a quadratic equation given three points on the parabola.

Concepts

systems of equations, elimination method, substitution method, problem solving strategies

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Additional Tags

math

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Instructional Ideas

• Have pupils use mini white boards to allow for quick fixes of mistakes
• Spend time reviewing methods of solving two variable systems

Classroom Considerations

• Expects an understanding of elimination and substitution method
• Lesson is the 31st in a 42-part series

Pros

• Uses pupils' background knowledge to extend to solving three-variable systems
• Includes ideas for scaffolding the lesson if necessary

Cons

• None

Common Core

HSA-REI.C.6 MP1 MP7