GEO.6 Circles

Beginning Lesson

Aws4 request&x amz signedheaders=host&x amz signature=7e1cd22afa36f46f659a0f46915bf316e1496c9e5d95d5fb055dc2516a5e9b2c

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=7cd08eb51757f7de5ab3bd027e16681426493426baf2ceff6472738f8d17f077

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=1d1a23bf4c760e85636dd588e80ee4bdad8dbb070107deee294f652085cd970c

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)