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It's the Right Thing Lesson Plan
In this lesson, students will learn the six types of triangles and the characteristics each one possesses. They will learn to read the degrees of an angle using a protractor, be able to determine proportions between heights and shadows, use ratio to find an unmeasureable object through the height to its shadow, understand the Pythagorean Theorem and how to use the formula, and learn to evaluate and compare congruent and similar right triangles. Using Microsoft Excel, students will compare sizes of the two legs of the right angle to find that the ratio between the height and the shadow are in proportion to each other.

It's the Right Thing

Lesson Plan Attachments

On-line Resources

  • The Pythagorean Theorem
    A lesson that provides hints for students to discover the Phythagorean theorem on their own. Also includes a review of essential material to successfully complete lesson.
  • Math Forum
    Another explanation of the Pythagorean Theorem.
  • Pythagorean Puzzle
    This Nova web page features an explanation of Pythagoras's theorem, a brief biography of Pythagoras, and a puzzle.
  • Types of Triangles Based on Angles
    Site where students can test their knowledge of three basic types of triangles.
  • Ask Dr. Math
    This page features explanations to various types of measurement, including how to use a protractor.
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