Lesson Plans Designed by students at Lehman College in Professor Sormani's MAT346 and MAT 636 courses on Euclidean and Noneuclidean Geometry. Feel free to download and use these lessons in your high school and junior high school classes.

Introduction to Parallel Lines in Euclidean Space and in Spherical Space
By Jeanette Sacchini, Dec 2002
This is a 2 day lesson plan for honors 8th grade students including a set of definitions and a quiz and a worksheet. It is a webpage so it can be downloaded anywhere.

Why does the Pythagorean Theorem Fail in Spherical Space?
by Jessica
This is a three-day lesson plan for juniors in Pre-Calculus. The lesson includes a set of definitions, a worksheet, a quiz, and a list of axioms adapted for Spherical Space. It is available as a microsoft word document

Spherical Geometry
by Mary
This 3 day lesson plan is designed for a 10th Grade Honors math course for students who have already studied Euclidean geometry and proving and deals with the axioms of spherical geometry. It is available as a microsoft word document

Parallel Lines in Noneuclidean Geometry
By Romulo Ramirez, Dec 2002
This is a 2 day lesson plan for 9th and 10th grade high school students for students with access to the internet in the classroom. Be sure to verify that all webpages are still accessable and before teaching. The lessons can be downloaded as microsoft word files: Lesson Plan 1 and Lesson Plan 2