Day 13 adding integers number line

Day13AddingIntegersNumberLine.notebook

1

September27,2012

Do Now

AIM: Adding Integers

http://www.google.com/search?hl=en&q=adding+integers&aq=f&oq=&safe=active


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September27,2012

Anticipatory Set

Explaining a Mistake

1.) Below is an example of adding integers a student completed and they provided an explanation. a.) What is the correct answer to the problem? b.) Explain why their explanation is not correct based on yesterdays lesson.

-10 + 6 = 4

EXPLANATION: Since they have different signs, I subtracted and kept the answer positive.

negative

-10 + 6 = -4


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September27,2012

10 2 3 4 5 6 7 8 9 1012345678910

ADDING INTEGERS USING A NUMBER LINE:

Pairs Check Activity:

STOP: WAIT FOR THE OTHER PAIR TO FINISH AND DISCUSS. DO NOT CONTINUE UNTIL INSTRUCTED TO!!!!!

-9 + 12 8 + (-10)

Name:_______________________________Date:_________________

Math 7 Period ____

Class Notes

OBJECTIVE: How do we add integers using a number line?

Anticipatory Set: Explaining a Mistake

1.) Below is an example of adding integers a student completed and they provided an explanation.

a.) What is the correct answer to the problem?

b.) Explain why their explanation is not correct based on yesterdays lesson.

-10 + 6 = 4



1.) Start at the first number you are adding.

2.) When the second number is:

Positive

Negative

Move to the right

Move to the left


-9 + 12

8 + (-10)


7 + (-3)

-3 + (-8)


Evaluate each expression for a = -15, b = -8, and c = 6.

14 + b

c + (-8)



a + b

c + 5 + a


Think-Pair-Share Questions:

1.) In Indianapolis, Indiana, the coldest recorded temperature was -23F. The hottest recorded temperature was 127F higher. What was the hottest temperature in Indianapolis?

2.) The Aral Sea and the Caspian Sea are actually lakes. The elevation of the Caspian Sea is 92 feet below sea level. The Aral Sea is 217 feet higher.

What is the elevation of the Aral Sea?

Lettered Heads Activity:

1.)

5.)

2.)

6.)

3.)

7.)

4.)

8.)

BEFORE YOU LEAVE

1.) Write an explanation, in complete sentences, about the following question from a student who was absent the past two days.

How do you add integers?

SMART Notebook


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September27,2012

10 2 3 4 5 6 7 8 9 1012345678910




7 + (-3) -3 + (-8)

Name:_______________________________Date:_________________

Math 7 Period ____

Class Notes






-10 + 6 = 4





Positive

Negative

Move to the right

Move to the left


-9 + 12

8 + (-10)


7 + (-3)

-3 + (-8)



14 + b

c + (-8)



a + b

c + 5 + a







1.)

5.)

2.)

6.)

3.)

7.)

4.)

8.)

BEFORE YOU LEAVE



SMART Notebook


5

September27,2012

10 2 3 4 5 6 7 8 9 1012345678910


14 + b


6

September27,2012

10 2 3 4 5 6 7 8 9 1012345678910


c + (-8)


7

September27,2012

10 2 3 4 5 6 7 8 9 1012345678910


a + b


8

September27,2012

10 2 3 4 5 6 7 8 9 1012345678910


c + 5 + a


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September27,2012

2.) The Aral Sea and the Caspian Sea are actually lakes. The elevation of the Caspian Sea is 92 feet below sea level. The Aral Sea is 217 feet higher.What is the elevation of the Aral Sea?


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September27,2012

5.) -11 + (-52)

6.) 25 + (-70)

7.) 25 + 14

8.) -26 + 42

1.) 7 + (-16)

3.) -3 + 10

2.) -6 + (-13)

4.) -7 + (-81)

Smart Response Activity


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September27,2012

AddingIntegers

Grade: gradeSubject: subject

Date: date


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September27,2012

1

1.) 7 + (-16)


14

September27,2012

2

2.) -6 + (-13)


15

September27,2012

3

3.) -3 + 10


16

September27,2012

4

4.) -7 + (-81)


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September27,2012

5

5.) -11 + (-52)


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September27,2012

6

6.) 25 + (-70)


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September27,2012

7

7.) 25 + 14


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September27,2012

8

8.) -26 + 42


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September27,2012

Extra Examples

http://www.mathwizz.com/integers/page1.htm


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September27,2012

BEFORE YOU LEAVEHow would you explain today's lesson to a student who was absent today?

AIM: AddingIntegers

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SMART Notebook


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September27,2012

Homework

Start Preparing for the Exam (10/5)

Attachments

ClassNotes11806.doc

RandomAddingIntegers.notebook

RandomAddingIntegersonly.notebook

Name:_______________________________Date:_________________

Math 7 Period ____

Class Notes






-10 + 6 = 4





Positive

Negative

Move to the right

Move to the left


-9 + 12

8 + (-10)


7 + (-3)

-3 + (-8)



14 + b

c + (-8)



a + b

c + 5 + a







1.)

5.)

2.)

6.)

3.)

7.)

4.)

8.)

BEFORE YOU LEAVE



SMART Notebook









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SMART Notebook

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Day 13 adding integers number line