GEO.6 Circles

Beginning Lesson

Aws4 request&x amz signedheaders=host&x amz signature=8afb61202b50bb22793e5602382eb44f9809a6820e4a6a078fa6d307f0125295

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=02401dc3f4b72844e0708284d0eea2c1379b836041142d68c5504936b1e607cc

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=fe1d1b3c96eacbce25ce7c8e6a54b0faed6ec74773691a334b1b07edce315205

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)