HSIII.4 Circles (G6)

Beginning Lesson

Aws4 request&x amz signedheaders=host&x amz signature=dde4dcb7c403629091ee17a064c118df730a36791d70238162d3dce1d0d69448

Triplets of Cellville

How do cell phone towers identify your location? Students describe geometrically the location information provided by a cell phone tower, explain why loci from at least three towers are required to pinpoint a customer's location, and consider the tradeoff between coverage and "locatability" when a phone company chooses a new tower location.

Topic: Congruence (CO), Modeling with Geometry (MG)

Middle Lesson

Aws4 request&x amz signedheaders=host&x amz signature=99e0cb5dd3133d6a46cbab104488eef8f62f6b6091c4b032848c6240a165ab42

Axle Roads

How do vehicles turn? In this lesson, students use the geometry of circles to understand how we get from point A to point B when the path isn’t a straight one.

Topic: Modeling with Geometry (MG)

End Lesson

Aws4 request&x amz signedheaders=host&x amz signature=0ecf9881f9a41f0045209244f357b46c2e473c84c8b2f300b4ac303af20e6115

As the World Turns (HS)

How fast is the Earth spinning? Students use rates, arc length, and trigonometric ratios to determine how fast the planet is spinning at different latitudes.

Topic: Circles (C), Similarity, Right Triangles, and Trigonometry (SRT)