Twenty-two standards-based lessons use graphic organizers to help students visualize how concepts relate to one another. A Mac/Win CD gives teachers the options of printing the 23 different graphic organizers as transparencies or as student worksheets. The lessons cover a variety of topics across the curriculum. Angles and Triangles (math) Life Science: Plant Reproduction (science) Ancient Egypt (history) Ecosystems and Stress (geography) Greek Myth (reading) Prefixes and Suffixes (writing)