Using the Identity and Inverse to Write Equivalent Expressions

The fifth installment in the series of 28 lessons helps math scholars explore the result of adding opposite numbers and multiplying reciprocals. Through their exploration, they develop a working definition of identity and inverse properties.

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CCSS: Designed
Additional Tags
Instructional Ideas
  • Use the number line as a manipulative when working with the identity and inverse properties
  • Ask learners to record the property used when simplifying expressions
Classroom Considerations
  • Requires an understanding of opposites and reciprocals
Pros
  • Begins with an opening exercise to engage pupils
  • Connects new learning to background knowledge
Cons
  • None
Common Core