Go beyond the regular curriculum with these units to challenge your more able intermediate grade math students. With their ease of use, clear instruction, and motivating topics, these are the perfect enrichment activities for the regular math curriculum. This book contains four units that are structured so that students can easily develop an understanding of the topics on their own. The four topics are: permutations and combinations, tessellations, line drawings, and graphing. Each unit provides sequential activities that allow students to work through these motivating topics, whether they are working by themselves, in a small group, or in a whole-class setting. The units lend themselves easily to a math center arrangement with each student having an individual folder and checklist to record his or her progress. While they were designed to provide added challenge for students who have mastered the regular curriculum, some of the units can be used as supplements for whole-class instruction. The emphasis in these units is on promoting thinking, developing perseverance, expanding students' view of mathematics, enjoying a challenge, and keeping math students actively involved and enthused about math. This book will help you provide students with opportunities to explore mathematical ideas in ways that promote their intellectual growth and expand their views of mathematics. This is one of a three-book series. The other books cover the following topics: Enrichment Units in Math Book 1—attribute pattern blocks, tangrams, sets and Venn diagrams, and ancient Egyptian numbers; and Enrichment Units in Math Book 3—probability, topology, magic squares, and number characteristics. For other math units to extend the math curriculum and provide opportunities to work independently, see Math Extension Units Book 1 and Book 2. Grades 4-6