The purpose of this book is to help busy classroom teachers provide enrichment for those students who quickly grasp the mathematical concepts being taught and are ready to move on to more challenging units. The units include challenging activities that will require higher-level thinking and will broaden students' problem-solving skills. This book is a great resource for busy classroom teachers who need materials to extend learning opportunities for those students who quickly grasp the concepts covered in their grade level math curriculum. The book includes four units: place value, time and measurement, problem solving, and money. The units provide hours of activities that will allow students to work independently or in small groups to extend their knowledge and apply their skills. Each unit includes 13 to 14 attractive, reproducible worksheets and an assignment sheet, making this an easy way for instructors to provide challenging, enriching experiences for capable math students. For a more advanced version of math extension activities, see Math Extension Units Book 2—geometry, fractions, graphing, and problem solving. For other math units targeted toward the same goal, see Enrichment Units in Math Books 1, 2, and 3. Grades 2–3 64 pages