A cool guide to ring metals. My husband picked out his engagement/wedding band. It is two tone white and yellow gold with a trio of tiny square diamonds. Classic, masculine, and nice-looking. I love that our rings complement each other.
This pi mobile would be a great introduction to pi, the concept of irrational numbers or as part of a study of Albert Einstein, who was born on Pi Day! Students can color all parts of the mobile while learning facts about pi.