This document contains notes from a math lesson on adding and subtracting rational numbers. It includes examples of problems involving adding and subtracting integers using a number line. It also previews a homework assignment on rational number addition and subtraction and quizzes students on exit tickets from the previous lesson. Finally, it poses closing questions about using a number line to model operations with rational numbers.

1. Module 2 Lesson 7.notebook
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Module 2, Lesson 7
HW: Lesson 7 Problem
Set
Addition and Subtraction of
Rational Numbers
Quiz Tomorrow
Do Now:
Exit Ticket For Lesson 6
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2. Module 2 Lesson 7.notebook
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­20­19­18­17­16­15­14­13­12­11­10­9 ­8 ­7 ­6 ­5 ­4 ­3 ­2 ­1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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3. Module 2 Lesson 7.notebook
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Problem Set 6 Answer Key
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-8 + (-6) =
-7 + 10 =
-9 - 7
-9 - (-3)
What is the distance between -8 ft and -11 ft?
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-1 0 1 2 3 4 5 6 7 8
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integer rules.
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CLOSING:
• What challenges do you face when using the number line model to
add non-integer rational numbers?
_ _
• When using a number line to model 8 ( 2.1), how many units do
we move from 8 and in what direction? Where is the tail of the
arrow, and where is the head? What does your arrow represent?
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