# Geometry and the GPS

By Marilyn Mears on Apr 24, 2017

Students work several activities to recognize shapes and their precise definitions.  In the last activity, students read GPS directions, translate them using geometry, and then create a simple map.

## Materials

Folding Geometric Shapes from www.hand2mind.com

## Procedure

1. Using "Folding Geometric Shapes,"  students identify the shapes that make up a cylinder or a rectangular solid.
2. Students go to www.khanacademy.org/commoncore/map, select High School Geometry, and answer the multiple choice questions related to HSG.CO.1.a.  Discuss the answers.

3. Using a Wheatley Board, students will follow the GPS directions to make a simple map.

1. Start at school.  (place a point on the board to represent school)
2. Go north 2 miles.  (place a line segment on the board starting at the point and going north)
3. Turn left.  (place a line segment perpendicular to the longer segment)
4. Turn right in 0.5 miles.  (place a line segment that is perpendicular to the short segment and still parallel to the longer segment)
5. Take the 3rd exit at the roundabout.  (Place a circle there and go 3/4 of the way around.  Place a line segment at that point going west.)
6. Make a slight right in 1 mile.  (create an acute angle and make the segment the road you are now on)
7. Stay on this road for 1 mile.  The destination is on your right.  You have arrived!  (Place another point at the final destination)

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