Write and Simplify a Variable Expression for Age (ax+b)

Age is just a number. The resource develops a multi-step expression to represent a person's age. Using the video, the presenter creates expressions for the age of four different people that build upon each other. The final age requires simplification. 

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CCSS: Adaptable
Instructional Ideas

  • Have the class brainstorm a plan to determine the answer to the question before showing the video
  • Create groups of four where each person is responsible for the algebraic representation for one of the ages
Classroom Considerations

  • Individuals should be familiar with the distributive property
Pros

  • Includes a link to more examples
  • Shows the steps involved in simplifying the final answer
Cons

  • None
Common Core