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Searched for: Key Concept is Mathematics -- Triangles
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This geometry lesson from Illuminations introduces a hands-on learning activity for students in grades 9-12. The class will use pasta to create models of triangles. They will examine the relationship between sides and...
This geometry lesson from Illuminations presents a real-world problem for students to solve with mathematical functions. The material involves constructing the circumcenter and incenter of a triangle. Learners will gain...
This math unit from Illuminations includes two lessons which help to teach the Law of Sines and the Law of Cosines. The first lesson asks students to use right triangle trigonometry to develop the law of sines. The...
This lesson will help students understand the law of cosines and the Pythagorean theorem. The material has students find out whether a triangle is acute, obtuse, or right; determine a formula for the law of cosines to...
The Maths Doctor website from Macmillan Publishers contains more than 250 lessons that are free for anyone. Each lesson includes a three to five minute video tutorial on the topic and a related worksheet for the student...
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