Cut the Knot
Cut the Knot!: Mathematics: The Science of Patterns
A book excerpt, this page discusses John Venn's "simple, geometric method for checking the validity of syllogisms," with diagrams, examples, and related links.
Scholastic
Scholastic Instructor: Geometric Quilts
Find out how quilting and math go hand in hand when you visit this comprehensive resource. This resource provides a lesson plan for integrating geometry concepts with quilt making.
National Council of Teachers of Mathematics
The Math Forum: Multicultural Math Fair: Navajo Burntwater Designs
Simple lesson designed to help young scholars learn the geometric concepts of translation, reflection, and symmetry by creating Navajo weaving patterns. Includes templates and instructions and is available in English and Spanish....
Cut the Knot
Cut the Knot!: Example of Convergent Infinite Series
This site explains the sum of a simple convergent series using a geometric illustration.
Other
Fractal Explorer
The fractal explorer shows how a very simple pattern, when repeated can produce an incredible range of images. From organic tree like structures to rigid geometric forms. Fun to use and lots of mathematical concepts involved.