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LearnZillion's Geometry lessons target high school Common Core standards by using animated video lessons. As geometry is quite visual, the detailed graphics here really help support the content. Note, however, that three of the six Common Core geometry domains are addressed: Similarity, Right Triangles & Geometry; Circles; and Geometric Measurement & Dimension. While about three-fourths of the standards in these domains are covered, it would be helpful to see more extensive coverage in the future. Furthermore, the lesson commentaries and guided practice problems found in other LearnZillion modules would be a welcome addition.
Use these lessons to reinforce a topic after you've introduced it more formally in class. Use the Assign tool to give students lessons -- have them do a think-pair-share activity as they work. Kids should view the lesson on their own first, then pair up with a partner to share any questions they have. Lastly come together as a class to discuss the lesson and address any remaining questions.
Full Disclosure: LearnZillion and Common Sense Education share funders; however, those relationships do not impact Common Sense Education's editorial independence and this learning rating.Continue reading Show less
Key Standards Supported
Prove that all circles are similar.
Geometric Measurement And Dimension
Give an informal argument for the formulas for the circumference of a circle, area of a circle, volume of a cylinder, pyramid, and cone. Use dissection arguments, Cavalieri’s principle, and informal limit arguments.
Use volume formulas for cylinders, pyramids, cones, and spheres to solve problems.
Identify the shapes of two-dimensional cross-sections of three- dimensional objects, and identify three-dimensional objects generated by rotations of two-dimensional objects.
Similarity, Right Triangles, And Trigonometry
Explain and use the relationship between the sine and cosine of complementary angles.
Use trigonometric ratios and the Pythagorean Theorem to solve right triangles in applied problems.
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