Rational and Irrational Numbers

Conquer any irrational fears you might have of irrational numbers. As class members investigate how to represent numbers geometrically, they learn about rational and irrational numbers, including approximating and ordering rational numbers, and expressing decimals as fractions.

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CCSS: Designed
Instructional Ideas

  • Use the resource to plan a unit on rational and irrational numbers
Classroom Considerations

  • Sets the stage for the Pythagorean Theorem, which appears later in the series
  • Be sure to have extra dot paper ready
  • The seventh part of a 10-lesson eighth grade workbook series
Pros

  • Provides examples specific to the unit
  • Teacher resource includes detailed answer key with notes on teaching
Cons

  • Includes self-assessment but no formal summative assessment
Common Core