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Integers Students will be able to add and subtract using integers. What are the rules for adding and subtracting integers?

Integers Students will be able to add and subtract using integers. What are the rules for adding and subtracting integers?

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Page 1: Integers Students will be able to add and subtract using integers. What are the rules for adding and subtracting integers?

IntegersStudents will be able to add and subtract using integers.

What are the rules for adding and subtracting integers?

Page 2: Integers Students will be able to add and subtract using integers. What are the rules for adding and subtracting integers?

Daily Math Review

This is your warm up. Come in and get started right away Organization of warm up.

Page 3: Integers Students will be able to add and subtract using integers. What are the rules for adding and subtracting integers?

Binder Set Up

Daily Math Review (DMR)/Warm Ups Homework Notes/Vocab Class Work Tests/Quizzes

Page 4: Integers Students will be able to add and subtract using integers. What are the rules for adding and subtracting integers?

Heaps and Holes

Have you ever been to the beach? Have you ever played with the sand? Have you ever dug a hole in the

sand? The sand you dig out = positive The hole = negative

Page 5: Integers Students will be able to add and subtract using integers. What are the rules for adding and subtracting integers?

Using Number Lines

Draw 5 number lines in your notes. Number them from -10 to +10. What IS an integer on a number line? What IS addition on a number line? What IS subtraction on a number line?

Page 6: Integers Students will be able to add and subtract using integers. What are the rules for adding and subtracting integers?

Using Number Lines: Let’s try a few…

Solve using a number line. Include a verbal explanation with each.

1. -5 + 2 3. 7 - ( -1) 5. -8 - (-2)

2. 6 + (-7) 4. -3 - 2

Page 7: Integers Students will be able to add and subtract using integers. What are the rules for adding and subtracting integers?

Integers as Counters

Using counters, draw and label the number 3, -4, and zero in your notes.

What IS an integer as a charge? What IS addition with counters? What IS subtraction with counters?

Page 8: Integers Students will be able to add and subtract using integers. What are the rules for adding and subtracting integers?

Solve and Explain

Solve using counters.  Include a verbal explanation with each.

1.  -5 + 2        3.  7 - ( -1)        5.  -8 - (-2)

2.  6 + (-7)        4.  -3 - 2

Page 9: Integers Students will be able to add and subtract using integers. What are the rules for adding and subtracting integers?

Using Counters

We can also use and to represent positive and negative numbers.

For each of our positive numbers, we will use a + sign and for all of our negative numbers, we will use a – sign.

Let’s try a few…

+ -

Page 10: Integers Students will be able to add and subtract using integers. What are the rules for adding and subtracting integers?

Integer RULES

List the integer addition and subtraction rules you have been taught in years prior to 8th grade.  

What IS a rule? Why do you use them? What are the relationships between

the rule and the number line or counters?

Page 11: Integers Students will be able to add and subtract using integers. What are the rules for adding and subtracting integers?

Solve and Explain

Solve using the rules.  Include a verbal explanation with each.

1.  -5 + 2        3.  7 - ( -1)        5.  -8 - (-2)

2.  6 + (-7)        4.  -3 - 2

Page 12: Integers Students will be able to add and subtract using integers. What are the rules for adding and subtracting integers?

Integer War

Split a deck of cards between you and your partner(s) evenly.  

Round 1:  Flip two cards over.  Black cards are positive and Red cards are negative.  Find their sum.  The largest sum wins the cards. Go through the entire stack.

Round 2: Do the same, but subtract the first card and second card.  You must keep the order flipped.

Page 13: Integers Students will be able to add and subtract using integers. What are the rules for adding and subtracting integers?

Homework

Complete the addition and subtraction worksheet, multiples of 3.

Record any problems you could not solve or with which you had difficulty.

Prepare a question to ask in class about these problems.

Challenge: Complete problems #21 - 30