Geometry
Lesson Plans > Mathematics > GeometryFeatured Lesson Plans
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The way definitions are written can either help or hinder our proof-writing skills
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How you can encourage some creativity in your geometry students, by suggesting they write their own theorems
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Trisecting an angle is impossible with a straight-edge and compass, but a special tool called a 'tomahawk' makes this construction possible.
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How to help students understand how the words some, all, and none work together in logic statements
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A discovery based lesson in which students will use a graphing calculator to explore how the equation of an ellipse relates to its graph
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A linear coordinate geometry math problem that can be solved in at least four different ways
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Two very different way of looking at transversals - comparing them to goal posts and continents
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Some thoughts about how we decide what we can assume, based on a diagram in a geometry problem
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