Radical Equations Day 2

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Students will be able to solve radical equations.

Big Idea

Multiple representations and problem solving are the key features of this radical equation lesson.

Warm Up and Homework Review

10 minutes

I include Warm ups with a Rubric as part of my daily routine. My goal is to allow students to work on Math Practice 3 each day. Grouping students into homogeneous pairs provides an opportunity for appropriately differentiated math conversations.  This lesson’s Warm Up- Polynomial Review Day 2, asks students to determine which of three radical equations has an extraneous solution.

I also use this time to correct and record the previous day's Homework.

Radical Equations

37 minutes

This lesson is a Guided Practice lesson meant to build both student skill with radical equations and student understanding of extraneous solutions.  

I begin with a problem similar to the ones from the previous lesson.  We then extend to new types of radical equations.  I have carefully selected to problems and order to build student skill and understanding.  I add problems as necessary.  Please watch my Video Narrative on maximizing student thinking during this lesson.  

Please see the PowerPoint for detailed presentation notes.

Exit Ticket

3 minutes

I use an exit ticket each day as a quick formative assessment to judge the success of the lesson.  

Today's Exit Ticket asks students to solve a radical equation.  


This assignment ensures that students are capable of independently solving the radical equations seen in the lesson. The final problem asks students to create a radical equation with an extraneous solution. This gives them an opportunity to use what they know about the structure of a radical equation (Math Practice 7).  

This assignment was created with Kuta Software which is an excellent resource for a mathematics teacher.