HSIII.4 Circles (G6)

Beginning Lesson

Aws4 request&x amz signedheaders=host&x amz signature=1fd14fc03618a0c6a6b5d81f44acaa8b172e3a579be54321cdaacbd1fdc4b8ec

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=5b55c669edcf01d86820b5bfeaf3b22de5dc3a647749f24afcc4ced4e3cd767a

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=dd8f12612b2b85d2574de032f843a5656c340b9ecd49adfe9ce82d0684854140

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)