Wed and Thursday 27th and 28th - Study Guide for Skills Test and Class Notes

Investigation 4.1  Goals:
This investigation focuses on the order of operations.
Students will explore the use of the order of operations to order computations in provided problems.

Link to notes from class.

SKILLS TEST PRACTICE PROBLEMS
Here is the study guide sheet for the Skills Test 1-16 (this Friday).
Page 1
Page 2

Tuesday 26th - Study Guide for Investigation #3

Accentuate the Negative - Check-in Investigation 3
Study Guide Essential Learning: 
• Demonstrate an understanding of arithmetic operations for integers (positive and negative numbers)
• Understand commutative property, distributive property and order of operations

Content covered:
1. Solve word problems involving positive and negative numbers Examples: Skill Sheet: Multiplying Integers
2. Solve problems involving addition, subtraction, multiplication, or division of positive and negative numbers Examples: Skill sheets (the papers with the circled problems)

 Study:
*Look over the first quiz from this unit. Make sure you can do any of the problems, especially any that were incorrect.
*Check the problems that you’ve marked wrong from your homework- redo them, if you can’t get the right answer, ask questions.
*Do some of the problems from the handouts and then check to see if they are right using a calculator. 

Vocabulary use be specific, use the terms we have learned – see the list in your vocabulary notebook and vocabulary crossword puzzle.

Tuesday, March 26, 2013

Quiz on Investigation 3 Tomorrow

Greetings all, 

Today we worked on a Check-In review packet about what we have learned in Investigation 3 about multiplying and dividing positive and negative integers.

Use the packet wisely tonight to help you practice and stay fresh for the quiz.  I have even attached the answers here.

Monday, March 25th 2013

Introducing Division of Integers

Today in math class we explored the division of integers using what we have learned about the relationship between division in multiplication found in fact families.  This allowed us to create algorithms for dividing integers.

We worked through 3.3 and collaborated as a class to explore various fact families with both positive and negative numbers.  During this process we found that multiplication is commutative (3x2=2x3) and that division is not commutative (3/2 is not equal to 2/3).

Here is a link to the notes from class today: Problem 3.3 Notes <-- For those of you who did not get a chance to finish in class I have put the answers on the notes for you.

Also, a friendly reminder that the homework for tonight is ACE #7-8 on pg. 69 and #33 on pg. 77.

Help Video on Subtracting Integers

March 20th and 21st - Investigation 3.1 and 3.2

Investigation 3.1 - Introducing Multiplication of Integers

The goals of today's lesson:

• Use a number line and motion model to develop the relationship between repeated addition and multiplication with integers
• Develop and use algorithms for multiplying integers.

Some of the algorithms uncovered by our students were:

• When two factors have the same sign then the product is positive.
• When two factors have opposite signs the product is a negative number.

Investigation 3.2 

Here is a video showing a different method of understanding the multiplication of integers using a pattern method.

March 18th - Investigation 2.5 coordinate graphing

Today we reviewed coordinate graphing in all 4 quadrants.
Here is an image to remind you of the 4 quadrants.


Students need to complete Investigation 2.5 A-E on p. 36-37.

Here is a video on graphing coordinate points.