4.7 - slides.notebook · 4.7 slides.notebook 5 november 05, 2012 objectives: 1. use completing the...

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4.7 Slides.notebook 1 November 05, 2012 Homework Answers: Packet will be collected Friday list will be posted on Wednesday.

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Page 1: 4.7 - Slides.notebook · 4.7 Slides.notebook 5 November 05, 2012 Objectives: 1. Use completing the square to solve equations. 2. Convert equations to vertex form. Key: What is the

4.7 ­ Slides.notebook

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November 05, 2012

Homework Answers:Packet will be collected Friday ­ list will be posted on Wednesday.

Page 2: 4.7 - Slides.notebook · 4.7 Slides.notebook 5 November 05, 2012 Objectives: 1. Use completing the square to solve equations. 2. Convert equations to vertex form. Key: What is the

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November 05, 2012

Page 3: 4.7 - Slides.notebook · 4.7 Slides.notebook 5 November 05, 2012 Objectives: 1. Use completing the square to solve equations. 2. Convert equations to vertex form. Key: What is the

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November 05, 2012

Introduction:

Page 4: 4.7 - Slides.notebook · 4.7 Slides.notebook 5 November 05, 2012 Objectives: 1. Use completing the square to solve equations. 2. Convert equations to vertex form. Key: What is the

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November 05, 2012

Opening Questions:

1. Give the dimensions of the following area:

2. Solve the following equation:

Page 5: 4.7 - Slides.notebook · 4.7 Slides.notebook 5 November 05, 2012 Objectives: 1. Use completing the square to solve equations. 2. Convert equations to vertex form. Key: What is the

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November 05, 2012

Objectives:

1. Use completing the square to solve equations.

2. Convert equations to vertex form.

Key: What is the relationship between the dimensions and the number of 1­tiles needed to fill in the area model?

Page 6: 4.7 - Slides.notebook · 4.7 Slides.notebook 5 November 05, 2012 Objectives: 1. Use completing the square to solve equations. 2. Convert equations to vertex form. Key: What is the

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November 05, 2012

Completing the Square Activity

1. Read the directions.

2. Take 10 minutes to use the algebra tiles to help fill in the chart.

3. Answer the questions.

Page 7: 4.7 - Slides.notebook · 4.7 Slides.notebook 5 November 05, 2012 Objectives: 1. Use completing the square to solve equations. 2. Convert equations to vertex form. Key: What is the

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November 05, 2012

Observations:

1. How is d related to b?

2. How is c related to d?

3. How can we complete the square? 

Page 8: 4.7 - Slides.notebook · 4.7 Slides.notebook 5 November 05, 2012 Objectives: 1. Use completing the square to solve equations. 2. Convert equations to vertex form. Key: What is the

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November 05, 2012

How is this useful?

1. Which is easier to solve? Why?

2. How can we change the first to look like the second?

Page 9: 4.7 - Slides.notebook · 4.7 Slides.notebook 5 November 05, 2012 Objectives: 1. Use completing the square to solve equations. 2. Convert equations to vertex form. Key: What is the

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November 05, 2012

The Process:

What's the area of the missing piece?

Page 10: 4.7 - Slides.notebook · 4.7 Slides.notebook 5 November 05, 2012 Objectives: 1. Use completing the square to solve equations. 2. Convert equations to vertex form. Key: What is the

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November 05, 2012

What value of c makes the following expression a perfect square?

Now let's solve an equation:

Page 11: 4.7 - Slides.notebook · 4.7 Slides.notebook 5 November 05, 2012 Objectives: 1. Use completing the square to solve equations. 2. Convert equations to vertex form. Key: What is the

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November 05, 2012

Summary:Completing the square let's us solve using "squares" like section 5.

We complete the square by:

Page 12: 4.7 - Slides.notebook · 4.7 Slides.notebook 5 November 05, 2012 Objectives: 1. Use completing the square to solve equations. 2. Convert equations to vertex form. Key: What is the

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November 05, 2012

Solve:

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November 05, 2012

Homework:

Visit http://www.wisc­online.com/objects/ViewObject.aspx?ID=TMH1902

Write down the five steps given at the end of the presentation ­ this will be part of your homework packet (3 points)