Integer Addition

   Contents

 Task

The lesson provides students with multiple representations of integer addition.  These representations include the use of manipulatives, color dots, and number lines. A real life situation of integer addition is used to engage in student’s thinking.

 GPS Addressed (click [+] to expand)

    [-] M7N1. Students will understand the meaning of positive and negative rational numbers and use them in computation.
     

    a. Find the absolute value of a number and understand it as the distance from zero on a number line.
    b. Compare and order rational numbers, including repeating decimals.
    c. Add, subtract, multiply, and divide positive and negative rational numbers.
    d. Solve problems using rational numbers.

    [-] M7P1. Students will solve problems (using appropriate technology).
      a. Build new mathematical knowledge through problem solving.
    b. Solve problems that arise in mathematics and in other contexts.
    c. Apply and adapt a variety of appropriate strategies to solve problems.
    d. Monitor and reflect on the process of mathematical problem solving.
    [-] M7P3. Students will solve problems (using appropriate technology).
      a. Organize and consolidate their mathematical thinking through communication.
    b. Communicate their mathematical thinking coherently and clearly to peers, teachers, and others.
    c. Analyze and evaluate the mathematical thinking and strategies of others.
    d. Use the language of mathematics to express mathematical ideas precisely.

 Video (duration: 15:38)


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Use these questions to guide your thinking about some of the important teacher ideas in the lesson featured in the video clip.

  1. How are manipulatives and other representations used in this lesson?
  2. How is the teacher helping students communicate mathematical reasoning?
  3. How does the teacher interject probing questions to help students rationalize their answers?
  4. Consider the GPS listed with this video. How does this lesson address each of these?
  5. What makes this lesson different from lessons you have taught on this topic? What are some similarities?

 Classroom Materials / Lesson Outlines