Instructional Video

Equations – Cross Multiplication

This Equations – Cross Multiplication instructional video also includes:

Mastering the art of solving a proportion is not only important for algebra, but it's crucial to geometry and statistics as well. A quick video demonstrates the use of cross multiplication to solve a proportion. The lesson includes options for independent practice following the video demonstration.

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CCSS: Adaptable
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Instructional Ideas
  • Assign the video for independent viewing and ask pupils to take notes
  • Follow the video with practice solving proportions
Classroom Considerations
  • Relies on previous work with simple proportions
  • Includes an answer key for independent practice assignments
  • Uses mathematical vocabulary throughout the explanations
  • None