Friday, July 5, 2013

CPM Geometry (Chapter 1) and Introducing Desmos

During the first chapter of the CPM Geometry textbook, students review a lot of Algebra skills.  At the close of chapter one, students have been introduced to the definitions of special triangles, special quadrilaterals, and regular polygons.

At the beginning of chapter two, I would introduce students to a graphing program called Desmos. Since students work in groups of four, each student would receive a different set of shapes to construct using this program.  If a shape is repeated within the group, the students would construct the shape in different quadrants. To vary the experience further, I would provide the coordinate of one of the vertices of the polygon.

Once completed, each student would send his/her project to my geometry Dropbox account.  Here is an example of a parallelogram and an isosceles triangle.

Click on image to enlarge it.