Illustrative Mathematics
Why Does SSS Work?
While it may seem incredibly obvious to the geometry student that congruent sides make congruent triangles, the proving of this by definition actually takes a bit of work. This exercise steps the class through this kind of proof by...
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Putting it On Paper
Learners locate and print samples of two different business letter formats. They write rough drafts of business letters inquiring when, where, and how math is used.
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The 3 R's of Common Denominators (Language)
Young scholars solve various word problems that deal with common denominators, and write the mathematical explanations they used to obtain the solutions.
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Where's the Math?
Fourth graders create an original math problem with a detailed solution key relative to their chosen career fields.
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Radius, Diameter and Area
Students identify the radius and diameter of a circle. In this geometry lesson, students calculate the volume and area of a cylinder and circle. They relate the circumference of a circle to Pi.
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Unit Circle and Triangle
Learners apply the Unit Circle to solve ratios of triangles. In this geometry lesson, students derive the different ratios of a triangle using the Pythagorean Theorem. They find the angles of a unit circle using a right triangle.
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Mathematical Contributions By Women
Third graders explore the contributions of women to mathematics by writing a research paper, presenting a summary to their peers, and sharing an activity with their peers. They use a variety of reference materials to gather information...