Math 8

Unit 2 Integers

Lesson 821 Using Models to Multiply Integers

Focus

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

TEXT Page 64

Read/Work through the  Focus  section at the top of page 64 in  your textbook.

Watch

Video Tutorial

Investigate

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

TEXT Page 64

Read/Work through the  Investigate  section on Page 64 in your textbook.
(Note,  you CAN do this activity using a NUMBER LINE,  you don’t need masking tape and a metre stick)
You can use this GRID PAPER to create number lines to work with in this Investigation
(How to use the grid paper,  Investigate A)

You may not have a partner to work with.  
No worries!  
I will provide you with examples in the video.  
You can view an example, PAUSE the video, work through the activity,  then RESUME the video to check your work.

Watch

Introduction to the Investigation  Investigate B

Video Tutorial    Investigate C

Connect

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

TEXT Pages 65- 66

Read/Work through the  Connect  section on Pages 65 - 66  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

Video Tutorial

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

TEXT Page 66

Work through Example 1 on Page 66 in your textbook.

Watch

Video Tutorial

Example 2

TEXT Page 67

Work through Example 2 on Page 67 in your textbook.

Watch

Video Tutorial

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.

Notes

Question 1, totally a discussion question, no video here

Question 2, totally a discussion question, no video here.
If you have a brilliant idea to model multiplication of integers,  share it with your teacher!

Question 3, we discussed this in the lesson,   the ORDER of the integers MAKES NO DIFFERENCE to the product, no video here

Question 14, totally a discussion question, no video here.
If you have a brilliant answer for this question,  share it with your teacher!

Question 19, totally a discussion question, no video here.
If you have a brilliant answer for this question,  share it with your teacher!

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!

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