Saturday, December 10, 2011

Geometry Ornaments

The Christmas tree in my classroom was needing some decorating, so I took the opportunity to review geometry with my students.

This would make a great classroom lesson for lower grade levels (4-7th). I bought some gumdrops from Walmart (mini marshmallows work too, but aren't as colorful), and used left over spaghetti noodles and toothpicks.

Students build 3-dimensional shapes (could work with 2-d shapes too) using the supplies given. We built cubes, triangular prisms & pyramids, rectangular prisms & pyramids, and then students calculated the number of faces, edges, and vertices, and showed me which side they would use to calculate "B," the area of the base.

~Mrs. Scott

1 comment:

  1. What a great activity! Jealous you can have a tree in your class!

    Happy Holidays!

    ❤ Mor Zrihen ❤
    A Teacher's Treasure