8.8 Integers

8.8.4 Applying Integer Operations

It is important to remember order of operations when working with integers, so today we will be looking at different applications of integers to solve problems.

Things you should know after today:

apply order of operations to integers (BEDMAS)
determine what integers in problems actually mean within the context of a story problem
solve problems that involve the mean of a set of numbers

Resources:

Notes

Assignment

p315 #4-9, 12, 14, 15, 17, 19-22

Attachments:
File	Description	File size
8.8.05.notes.bedmas.pdf		629 kB

8.8.3 Multiplying and Dividing with Integers

We can think of multiplying as repeated additions to help us determine what multiplying by an integer means. Today, you will develop the sign rule for multiplying and dividing, and talk about what integers mean in the context of a story problem.

Things you should be able to do after today:

use the sign rule to help you determine the product or quotient of two integers
determine the sign of a product when there are more than two things (factors) being multiplied together
explain what a positive or negative answer means in the context of a word problem.

Resources:

Notes

Assignment:

p297 #4, 5, 7-13, 16, 19-22, 25
p310 #7-10, 11-15, 18, 21

Attachments:
File	Description	File size
8.8.3.notes.multiplying.PDF		117 kB
8.8.4.dividing.pdf		140 kB

8.8.1 Review:Adding/Subtracting Integers

Read the article from the Manchester Evening News: Read Article Here

What comments would you make after reading the article? Some points to consider:

Is Tina Farrell correct? Does she have a valid argument?
How important is the use of language here?
What are your thoughts on positive and negative numbers and how they are used?

Resources

Watch the video that demonstrates addition and subtraction of integers using algebra tiles. You can read/copy the notes as well.
- Video: Using algebra tiles to model addition/subtraction of integers
- Optional videos to watch:
  - Adding and subtracting integers
  - Subtracting integers using algebra tiles
- 8.0 Notes: Adding integers

Assignment

Worksheets
Visit and complete the ONLINE TEST. You must get more than 35 of the 40 questions correct, so keep doing it until you get the correct number. Then, print out the completed test and bring it to class.

Attachments:
File	Description	File size
8.8.0.notes.adding.pdf		491 kB
8.8.01.worksheet.pdf		1132 kB

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