Percent Increase and Decrease Quiz
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Geometry: Geometry - Triangular Pyramid
This fun activity offers a pleasant surprise from an unlikely source. Who would guess that an ordinary envelope would have the perfect dimensions to form a triangular pyramid? Whether you teach math, want to increase student engagement, or are just looking for a creative way to use flexible grouping, this activity will do the trick!
All you need is an envelope and a ruler to draw a straight line!
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3rd - 8th
For All Subjects, Geometry
Conditions of a Triangle Using Side Lengths 7.G.A.2
This is an introductory lesson to Conditions of a Triangle. The focus of this lesson is solely on side lengths and not on angle measures. It's on Day 2 that I delve into whether or not triangles can be created using angle measures, and noticing when the conditions determine a unique triangle, more than one triangle, or no triangle.
This lesson is aligned with Common Core Standard 7.G.2.
6th - 7th
Geometry
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