Percent of Change

Your car decreases in value from $20,000 to $17,000. What percent of the value have you lost? Pupils answer word problems by determining the percent of change. 

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CCSS: Adaptable
Instructional Ideas

  • Use the sixth example as a challenge exercise for those that are ready
  • Before introducing the formula, allow pupils to develop their own strategies for answering the question
Classroom Considerations

  • The vocabulary in the lesson may be confusing to some; spend time explaining and giving examples when needed
  • The eighth lesson in a series that follows a review of percents

  • Includes application with real-life scenarios
  • Contains a practice problem set

  • Begins with a formula to calculate the percent change; learners don't have an opportunity to understand the meaning of the term/concept
Common Core