Adding and Subtracting Expressions with Radicals

I can multiply, so why can't I add these radicals? Mathematicians use the distributive property to explain addition of radical expressions. As they learn how to add radicals, they then apply that concept to find the perimeter of polygons. 

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CCSS: Designed
Instructional Ideas

  • Organize properties and examples in a graphic organizer 
  • Use board work to allow for frequent checks for understanding
Classroom Considerations

  • Learners should have an understanding of simplifying radicals prior to this lesson; plan for review if this is not the case
  • Prepares learners for future installments of the 36-part series
Pros

  • Uses properties to reinforce procedures
  • Includes an opening activity, exit ticket, and problem set
Cons

  • None
Common Core