Efficiently Adding Integers and Other Rational Numbers

Develop the rules for adding rational numbers. Pupils continue to work with adding integers. Young mathematicians use their experiences to develop the rules for adding integers with like and unlike signs. They finish the lesson by transferring the rules to all rational numbers.

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CCSS: Designed
Instructional Ideas

  • Create a game similar to the integer game but use a variety of rational numbers instead of just integers
  • Have each class member summarize the rules for adding integers in their own words
Classroom Considerations

  • Individuals should be familiar with adding integers using a number line
Pros

  • Includes suggestions on how to gauge students' understanding
  • The answer key provides the direction the arrow would point for horizontal and vertical number lines
Cons

  • None
Common Core