Complete, easy-to-use and engaging, the Addition & Subtraction Number Sense Learning Center is ideal for the instruction and review of this key, standards-based concept. Designed for either teacher-directed instruction or independent use by groups of 2 to 4 students, the Learning Center provides complete, leveled coverage of this curriculum-aligned topic, making it perfect for differentiated instruction. To use, the students first work individually or in pairs using the 4 laminated Visual Learning Guides provided on the topic. The guide provides a graphic, easy-to-follow overview of the concept; “Write-On/Wipe-Off” activities and graphic organizers; and a set of guiding, assessment review questions. They then form in a group to play the Curriculum Mastery Game included for cooperative or competitive review and reinforcement of the concepts. Packaged in a durable pouch, the Learning Center is a ready-to-use resource for the classroom, after school and summer school programs or at home for test preparation, practice and review! Grades 3 to 5.