This document outlines lessons from Module 2 on adding and subtracting rational numbers. It includes examples of number line models demonstrating how to find the sums and differences of integers. Students are assigned problems from the lesson set and an integer sprint. The closing questions ask about challenges of using the number line model for non-integer rational numbers and how to interpret an arrow on the number line representing the addition of a decimal amount.

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Module 2 Lesson 7:
Addition and Subtraction
of Rational Numbers Homework:
1.) Lesson 7 Problem Set All
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Do Now
Exit Ticket from Lesson 6

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­20 ­19 ­18 ­17 ­16 ­15 ­14 ­13 ­12 ­11 ­10 ­9 ­8 ­7 ­6 ­5 ­4 ­3 ­2 ­1 0 1 2 3 4 5 6 7 8 9 10
p - qDistance between two points:

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INTEGER SPRINT

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-1 0 1 2 3 4 5 6 7 8 9 10 11 12
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Find the following sums and differences using a number line model.
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Problem Set #5 S.49

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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?
_ _

18. Attachments
Module 2 Lesson 7 Sprint Adding and Subtracting Integers.docx