Math 8

Unit 5 Percent, Ratio and Rate

Lesson 5.10 Comparing Rates

Focus

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

TEXT Page 300

Read/Work through the  Focus  section at the top of page 300 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 300

Read/Work through the  Investigate  section on Page 300 in your textbook.

You can do this activity on your own.
Do your best to answer the questions, then watch the Video Tutorial for help or to check your answers.

Watch

Video Tutorial

Connect

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

TEXT Page 301

Read/Work through the  Connect  section on Page 301 in your textbook.

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 302

Work through Example 1 on Page 302 in your textbook.

Watch

Video Tutorial

Example 2

TEXT Pages 302 - 303

Work through Example 2 on Pages 302 - 303  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,    this is subjective,   you really could use ANY unit, as long as you compare “same thing to same thing”.
Really, what is important here,  is CONVENIENCE and choosing an EASY unit for comparison.
I didn’t make a video for this one.

Question 2,    you need to consider if the quantity is too large to eat in a reasonable time for the situation.  
Eg.  how many people will be eating the cereal?
I didn’t make a video for this one.

Question 3,    1 kg would be hard to “get to” from 450 g, and 600 g,  but.... with calculators,   you could do it if you really wanted to.
I didn’t make a video for this one.

Question 4,    totally subjective,  I hope in the practice problems that you try to use LOTS of different methods to help develop your skills.
I didn’t make a video for this one.

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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