**TEKS Objectives**

(7) Geometry and spatial reasoning. The student uses attributes to identify two- and three-dimensional geometric figures. The student compares and contrasts two- and three-dimensional geometric figures or both. The student is expected to:

(A) describe attributes (the number of vertices, faces, edges, sides) of two- and three-dimensional geometric figures such as circles, polygons, spheres, cones, cylinders, prisms, and pyramids, etc.;

(B) use attributes to describe how 2 two-dimensional figures or 2 three-dimensional geometric figures are alike or different;

(C) cut two-dimensional geometric figures apart and identify the new geometric figures formed.

(A) describe attributes (the number of vertices, faces, edges, sides) of two- and three-dimensional geometric figures such as circles, polygons, spheres, cones, cylinders, prisms, and pyramids, etc.;

(B) use attributes to describe how 2 two-dimensional figures or 2 three-dimensional geometric figures are alike or different;

(C) cut two-dimensional geometric figures apart and identify the new geometric figures formed.

**Resources**

1. http://www.mathsisfun.com/geometry/vertices-faces-edges.html. Math is fun is a great website that explains what are vertices, faces, edges, and sides. This is a great tool as a teacher because the website is user friendly and has many worksheets to choose from.Moreover, students can also got to the website and take online quizzes on the subjects they have learned about. The website also includes activities, puzzles, and a dictionary of all the math terms used in elementary schools.

2. The Greedy Triangle by Marilyn Burns. This is a story about a triangle that visits a shape shifter to add another angle to his shape. Therefore, he becomes a quadrilateral. Then he gets greedy and keeps adding angles until he's completely transformed. This is a great book for students because the book will test the knowledge the children have about shapes while introducing new concepts.

2. The Greedy Triangle by Marilyn Burns. This is a story about a triangle that visits a shape shifter to add another angle to his shape. Therefore, he becomes a quadrilateral. Then he gets greedy and keeps adding angles until he's completely transformed. This is a great book for students because the book will test the knowledge the children have about shapes while introducing new concepts.

3. These are the two worksheets I found that will help me assess the progress of my students. These worksheets will allow my students to differentiate between vertices, faces, edges, and sides. Moreover, these worksheets integrates new material that students learn in 2nd grade math classes.

A. Sides Quiz: http://prek-8.com/2ndgrade/geometryWorksheets5.html

B. Shapes, Edges, Vertices: http://prek-8.com/2ndgrade/geometryWorksheets4.html

A. Sides Quiz: http://prek-8.com/2ndgrade/geometryWorksheets5.html

B. Shapes, Edges, Vertices: http://prek-8.com/2ndgrade/geometryWorksheets4.html