Math 9

Unit 1 Square Roots and Surface Area

Lesson 911 Square Roots of Perfect Squares

Getting Started

There are a few things to cover BEFORE we actually get into the lesson.

Explore/Review  (optional)

The ideas of this lesson are based on things you (hopefully!) remember from a previous math course.

Experiment with the demonstration below.
Once you have done that,  answer the questions that follow.

Demonstration

Questions to try

How many DIFFERENT shapes can you make with an area of 
A)	12 squares?
B)	20 squares?
C)	9 squares?
D)	13 squares?

Can you make a square with an area of 
A)	16 squares?
B)	9 squares?
C)	20 squares?
D)	50 squares?
E)	49 squares?

Video Comments

Video Comments

Focus

The FOCUS section introduces the main concept that will be covered in the lesson.

TEXT Page 6

Read/Work through the  Focus  section at the top of page 6 in  your textbook.

Watch

Video comments

Investigate

Investigate an idea or problem, with a partner if possible.
The investigation provides the background for the ideas presented in the lesson.

TEXT Pages 6 - 7

Read/Work through the  Investigate  section on Pages 6 - 7  in your textbook.

Watch

Video comments

Connect

Connect summarizes the math in the lesson.
A presentation of ideas connected to the lesson focus.

TEXT Pages 7 - 8

Read/Work through the  Connect  section on Pages 7 - 8  in your textbook.

Even if you KNOW you are going to watch the video, READING this section is still important.

Getting the same information in multiple ways can help with understanding.

Watch

I worked through the material in the Connect section a little bit at a time, so there are several video clips.

Video comments A

Video comments B

Video comments C

Video comments D

Video comments E

Video comments F

Examples

Examples will give you TOOLS for solving problems, and also show you that there may be different ways to approach a question.

Example 1  Determining a Perfect Square Given its Square Root

TEXT Page 9

Work through Example 1 on Page 9 in your textbook.

Watch

Video comments

Example 2  Identifying Fractions that Are Perfect Squares

TEXT Pages 9 - 10

Work through Example 2 on Pages 9 - 10  in your textbook.

Watch

Video comments

Example 3  Identifying Decimals that Are Perfect Squares

TEXT Page 10

Work through Example 3 on Page 10 in your textbook.

Watch

Video comments

Practice Problems

Doing Practice Problems

Practice problems reinforce the math presented in this lesson.

•	Work through the practice problems for this lesson.
	These problems are for practice, you don’t need to hand them in!
	(your teacher may assign specific questions for you to complete)

•	Use the answers in the back of the book to CHECK YOUR WORK!

•	If you make a mistake, TRY TO FIX IT!

•	If you need help or want more information, view the video solutions provided.

•	If you still need more help,  CONTACT YOUR TEACHER!

Types of Practice Problems

Discuss the Ideas invites you to talk about the math.
If possible share your thoughts/ideas/answers with another person.
If you can help them understand, then you likely have good understanding yourself.

Check questions require basic understanding of the ideas of the  lesson.

Apply questions will require you to dig deeper for a solution.

Take It Further questions offer enrichment and extension.

Video Solution Links

Check your work for every problem you do!
If you make a mistake,  try to fix it!
Use the video solutions for more information.
If a problem still doesn’t make sense, ASK YOUR TEACHER FOR HELP!

({{"Question 1", "Question 2", "Question 3", "Question 4", "Question 5"}, {"Question 6", "Question 7", "Question 8", "Question 9", "Question 10"}, {"Question 11", "Question 12", "Question 13", "Question 14", "Question 15"}, {"Question 16", "Question 17", "Question 18", "Question 19", }})