Three Ways to Solve a Problem

Unit 9: Systems of Equations
Lesson 9 of 20

Objective: SWBAT make connections between, and assess the relative usefulness of guess and check, graphing, and substitution as ways to solve a problem with two unknown values.

Big Idea: Over the course of today’s lesson, students will beg for an algebraic solution, understand on their own why it’s great that algebra was invented, and see the beauty of an elegant solution.

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u5 l9 connect dots and intersection
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