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7.NR.1: Solve relevant, mathematical problems, including multi-step problems, involving the four operations with rational numbers and quantities in any form (integers, percentages, fractions, and decimal numbers)
7.NR.1.3: Represent addition with rational numbers on a horizontal or a vertical number line diagram to solve authentic problems.

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• I can show that a number and its opposite have a sum of zero using counters or a number line.
• I can interpret sums of rational numbers in a scenario.

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There are 60 minutes in 1 hour.  How many minutes are there in 12 hours?

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Students will be given color counters and a number line and will be asked to represent scenarios.

1. Use the number line to determine each sum.
a. -4 + 7 =
b. 4 + (-7) =
c. -4 + (-7) =
d. 4 + 7 =

2. -12 + 4
a. Draw a representation using 2-color counters to represent the number sentence.
b. What is the sum?
c. Explain your thinking.

3. Write an addition sentence to represent the situation below. Carlos receives 11 dollars for his birthday, he spends 8 dollars. He has 3 dollars left.

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1. Students will work with a partner to answer questions about real world integers. (Worksheet attached)

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1. Watch the attached video and discuss as a class what students observed.

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Adding and subtracting negative numbers | Pre-Algebra | Khan Academy

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Students will complete the attached reflection sheet individually.