Math 9

Unit 2 Powers and Exponent Laws

Lesson 923 Order of Operations with Powers

Focus

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

TEXT Page 63

Read/Work through the  Focus  section at the top of page 63 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 63

Read/Work through the  Investigate  section on Page 63 in your textbook.

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.

Note!   There are an infinite number of possible expressions you could write!
If you create an expression and evaluate it, you may not be able to easily check if you have done it correctly or not.
If you like, view the video, where I will provide a couple examples that you can try and then be able check your work.

Watch

Video Tutorial

Connect

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

TEXT Page 64

Read/Work through the  Connect  section on Page 64 in your textbook.

Online

I’m not sure why the textbook doesn’t give you a nice acronym for the correct order of operations.

If you do a search for  “Order of Operations Acronym”  you will get MANY hits.
HERE is one possible website with information about this important idea.

an acronym is a word formed from the first letter or first few letters of each word in a phrase (such as sonar, created from sound navigation and ranging)

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  Adding and Subtracting with Powers

TEXT Page 64

Work through Example 1 on Page 64 in your textbook.

Watch

Video Tutorial

Example 2  Multiplying and Dividing with Powers

TEXT Pages 64- 65

Work through Example 2 on Pages 64 - 65  in your textbook.

Watch

Video Tutorial

Example 3  Solving Problems Using Powers

TEXT Page 65

Work through Example 3 on Page 65 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 9,    There are many possible acronyms.   If you do an internet search for “order of operations”,   you will get many hits.
Here is one site that has good information and teachers PEDMAS instead of BEDMAS.
The acronym doesn’t matter, AS LONG AS IT ALWAYS GETS YOU TO THE RIGHT ANSWER!

Question 23,    I didn’t do 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!

({{"Question 1", "Question 2", "Question 3", "Question 4", "Question 5"}, {"Question 6", "Question 7", "Question 8",  , "Question 10"}, {"Question 11", "Question 12", "Question 13", "Question 14", "Question 15"}, {"Question 16", "Question 17", "Question 18", "Question 19", "Question 20"}, {"Question 21", "Question 22",  , "Question 24", "Question 25"}, {"Question 26", "Question 27", , , }})