## Reflection: Developing a Conceptual Understanding Solving Quadratics by Factoring-Day 1 - Section 1: Launch

This is certainly the best my students have done with this lesson.  Typically, I have shown the generalization of the zero product property (ab=0) and then jumped right into factoring trinomials.  The time that I spent to develop this idea through the three slides in the launch really paid off in student understanding.  Students were able to see clearly, why the solutions for a quadratic equation make that equation equal zero.  I will certainly approach this lesson from the same perspective in future years.

Repeated Reasoning
Developing a Conceptual Understanding: Repeated Reasoning

# Solving Quadratics by Factoring-Day 1

Lesson 4 of 21

## Big Idea: Factoring can be used as a tool to examine the structure of an equation.

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40 minutes

### James Bialasik

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