Indirect Measurement - with similar triangles or with trigonometry

shadow diagram.jpg MirrorDiagram.jpgIndirect Measurement.png

Pythagorean Theorem Activities and Videos

Pythagorean Puzzles - cut them out, put them together to show the Pythagorean Theorem. Pythagorean Puzzles_1.jpeg

There are companion SMART Board files that contains these puzzles and more.
Prove the Pythagorean Theorem with some cool paper folding:

  • (KR) Pythagorean's Theorem - This YouTube video is a great short clip to show students the meaning behind Pythagorean's Theorem. Students don't visualize the WHY the sides are squared and how the sums of the bases squared is equivalent to the hypotenuse squared. This video really demonstrates the Theorem and is intriguing enough for students to use as a memory tool. http://www.youtube.com/watch?feature=player_embedded&v=CAkMUdeB06o#!

More PaperFolding ideas

Tangram Congruence and Similarity_1.jpegTangrams - Explore congruence and Similarity with tangrams.

Dowload a companion SMART Board file:

Geometry and Measurement activities

  1. Hands on lessons including indirect measurement activities- http://greenapples.wikispaces.com/Hands-on+Lessons
  2. Geometry and measurement activities: http://www.csiro.au/~/link.aspx?_id=2117D92C8B814837A76888E8535CEBF0&_z=z

Explore Geometric Series with Tear it Up

TearItUp.pnghttp://napmath.wordpress.com/2012/11/24/solve-this-121418116132-and-more-with-a-piece-of-paper/
Download the PowerPoint:

Reflections, Translations, Rotations and Dilations

Find activities and foldables for transformational geometry: Click here
foldables.png