Direct proof Teacher Resources

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Euclidean Direct Proofs

For Teachers 9th - 10th
Learning how to prove theorems in geometry can be challenging. This resource explains what a proof is, and the different styles for proofs. It also contains links to web-based practice problems that help guide learners though example...
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Indirect Proof and Inequalities in one Triangle

For Teachers 10th
For this geometry worksheet, 10th graders complete an indirect proof and order the sides or angles of a triangle. Also, students determine if a triangle can have sides with the given lengths. The two page worksheet contains twelve...
Lesson Planet

Say What You Mean: Logic and Reasoning

For Teachers 9th - 10th
Students use logic reasoning to solve problems. In this geometry lesson, students prove theorems are true and identify the hypotheses and conclusion of different sentences.
Lesson Planet

Create a Board Game

For Teachers 6th - 8th
Students research, design, and create a game board based on information learned in ancient civilizations' social studies units. They utilize computer technology to research the project, as well as, textbooks, in-class library and video...

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