This monograph concerns the geometry curriculum as it should be in an effective and complete mathematics program in grades K-9. The first section makes an impelling argument for teaching substantial amounts of geometry in grades K-9: for practical life skills, for developing number and measurement concepts, for problem-solving experiences, for…

The activities in this monograph are self-contained explorations into mathematical topics not often included in regular classroom work in grades 3-8. They were selected because of their intriguing enjoyment and because they deal with honest mathematics; they also strengthen skills, especially problem-solving skills. Included are activities with…