Reflection: Developing a Conceptual Understanding Solving Quadratics by Factoring-Day 2 - Section 2: Practice

This lesson happened to fall on the day after a week long break.  It worked out very well in order to give students a reintroduction to solving quadratic equations and give them time to practice and make connections between the algebraic and graphical representations.

I made it a point in the narrative to discuss question #17 and #22.  As anticipated almost EVERY student tried to solve these equations by setting them equal to zero.  From there, about half were successful at factoring them to find the correct solutions.  I made it a point to pull the class back together and ask them what they notice about #17 and #22 that made them different from the other equations.  Once students looked closer they realized that they were linear.  This just shows that sometimes students go into "autopilot" and the thinking that you would like to see goes right out the window!

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Solving Quadratics by Factoring-Day 2

Unit 6: Quadratic Functions
Lesson 5 of 21

Big Idea: This lesson allows student to get LOTS of algebraic practice while using technology to build conceptual understanding.

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40 minutes

James Bialasik

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