GEO.6 Circles

Beginning Lesson

Aws4 request&x amz signedheaders=host&x amz signature=6997e52bba70132fa5dd37d447e1fa468569a4b4f0bfeaee2ccc5bbb4c07f2cc

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=1b60f91e95b24ed0dee1bc38e31a5ecb2ac3094620dba198f0e871aafd4eb573

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=db5c39a9be2e6374ee5e8300475d3a6d230a7ddf959e43bee4ef4fb9dd73dd0b

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)