Illustrative Mathematics
Illustrative Mathematics: G Gpe.5 Triangles Inscribed in Circle
In this task, students use ideas about linear functions to determine when certain angles are right angles. They use the fact that two lines (if not vertical or horizontal) are perpendicular when their slopes are inverse reciprocals, as...
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Nearpod: An Introduction to Angles
In this lesson, students will learn important definitions about angles relationships an use those facts to solve equations.
Beacon Learning Center
Beacon Learning Center: Quad Squad
This interactive lesson investigates quadrilaterals and provides students with an opportunity to practice describing their attributes.
Illustrative Mathematics
Illustrative Mathematics: G Co Midpoints of the Sides of a Paralellogram
Suppose that ABCD is a parallelogram and that M and N are the midpoints of lines AB and CD respectively. Students are asked to prove that MN=AD, and that the line MN is parallel to line AD. Aligns with G-CO.C.11.
Illustrative Mathematics
Illustrative Mathematics: 8.g Point Reflection
In this task, 8th graders are given the coordinates of a point and are asked to find the coordinates of its reflection across a line parallel to the x-axis. Aligns with 8.G.A.3.
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