How Tall is the Tree?

This How Tall is the Tree? performance task also includes:

Pairs or small groups work together to determine the height of a tree using similar triangles. Learners make a judgement which direction to let a tree fall to avoid hitting any structures. They then write letters to the principal explaining their solutions.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Use the task to start a discussion that leads to the trigonometric ratios
Classroom Considerations
  • Requires a tree to determine its height
  • Assumes the class is familiar with similar triangles and their properties
  • Provides a sample benchmark response
  • Includes a pre-activity worksheet to use as a warm-up
  • None