IC: Ch. 1.4 Investigation #1HW: Put It Together Wkst

Materials

Write the IC and HW in your planner. Tuesday, 9/5/17

• Pencil• Grading pen• Marker, Eraser, Slate• Ch. 1 Math Folder• Extra Credit #2 from Friday.

Math 7

Directions: Copy and solve each problem.

1) -14 + 8 2) 14 + -8

3) -14 - 8 4) 14 - (-8)

-6 6

-14 + (-8)

-22

14 + 8

22

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Ch. 1.4 InvestigationObjective: TSWBAT discover the pattern for multiplying integers.

Date _________________

“Put in ____ groups _____ positives/negatives”

“Take out ____ groups _____ positives/negatives”

Expression Product

4 • 1 4

4 • 2 8

4 • 3 12

4 • (-1) - 4

4 • (-2) - 8

4 • (-3) - 12

- 4 • 1

- 4 • 2 - 8

- 4 • 3 - 12

- 4

- 4 • (-1) 4

- 4 • (-2) 8

- 4 • (-3) 12

Directions: Use your data from your investigations on the front side of this paper to help you make decisions about your answers to the following questions.

Name __________________________Date ___________________________Period: B____, G_____

1) What do you notice is true about the problems that have positive products?

2) What do you notice is true about the problems that have negative products?

3) How can you tell if the answer to a multiplication problem is going to be positive or negative just by looking at it?

3) Write a general rule for multiplying integers.