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- Grade Range
- 9th - 12th
- Rating
Students practice writing formal two column geometric proofs involving congruent triangles and congruent corresponding parts. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students study about deriving centripetal acceleration for motion at constant speed around a circle. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students examine arrangements of soda cans placed in bins with two vertical sides. They discover how the cans are ultimately arranged. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students participate in a math unit to focus on the following: further develop the idea of a proof. They also develop the process of formalizing the idea of a proof and how it is related to an understanding of defining truth. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students create graphic organizers to visually represent geometric concepts. Working in small groups, students develop five graphic organizers that fit a particular proof. Diagrams are presented to the class. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students are introduced to the concept that proofs are related to the construction of parallel lines. As a whole class, if-then statements are reviewed. Students create an inf-then proof for parallel lines. Full Review »
- Grade Range
- 9th
- Rating
Students, after being given a unique scenario and a task sheet on Dead Man's Curve, calculate and explain the force needed to keep a car on a curve using a set of formulas and a geometric property of circles. They utilize and create appropriate strategies and formulas with geometric circles to clearly state what was done and why it was done. Full Review »
- Grade Range
- 6th
- Rating
Students find the area of a circle given the radius and also given the diameter. They must realize the change in formula when a radius is given instead of a diameter. Full Review »
- Grade Range
- 6th
- Rating
Students investigate the magnitudes of the sides and angles of a triangle. They determine the proof of the Sine Rule before using it to solve triangles. They compare the Sine Rule to the Cosine Rule in this unit of lessons. Full Review »
- Grade Range
- 5th - 6th
- Rating
Students develop the skills of problem solving through looking at situations mathematically. The lesson introduces students to the concepts of theorems and proofs as part of how one looks at mathematical problems. Full Review »
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