Designed for use in the classroom, our Giant Magnetic Number Bonds set is used to show students the relationship between numbers, part-part-whole relationships, and how to decompose and compose numbers. Teachers can use this versatile resource to help students transition from using concrete to pictorial models, and then to abstract representations. Students will deepen their understanding of number relationships, fact families, and addition and subtraction. A set of circle and square number bonds is included, along with 4 connecting lines and 45 magnetic discs.