Percent of Change: The Pizza Conundrum

Nine questions—multiple choice and fill in the blank—challenge mathematicians to solve money word problems. Looking closely at prices, scholars use a formula to identify percent increases and decreases based on an original and new price. A discussion question closes the practice. 

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Encourage participants to use their notes and scratch-paper while they work to complete the interactive 
  • Assign the interactive for independent practice after direct instruction and guided practice 
  • Direct pupils to write their answer to question nine in preparation for a whole-class discussion 
Classroom Considerations
  • Learners should know how to solve equations dealing with percent increases and decreases 
  • Those working on the interactive require a free CK-12 account
  • Parts of the tool are color-coded 
  • The restaurant theme sparks attention 
  • Word problems are written clearly 
  • The tool directly assists only a small number of problems
Common Core