Explore early math concepts with Cuisenaire Rods! Build fundamental math skills for children in grades K-2 with this versatile activity set! Empower young learners to relate abstract ideas about numbers and shapes to highly versatile manipulatives they can see and touch! The Cuisenaire® Rods Early Math Activity Set pairs rods in 10 colors, each a different length, with guided activities that help children master mathematical skills and build understanding with hands-on practice. Children will explore addition, subtraction, composing/decomposing numbers, early geometry, and more. Includes 74 Plastic Cuisenaire Rods, 15 Write-on/Wipe-off Double-sided Activity Cards, 1 Dry-Erase Marker, and 1 Getting Started Guide. Set of 74 has the following quantities and measurements: 4 Orange - 10 x 1 x 1 cm 4 Blue - 9 x 1 x 1 cm 4 Brown - 8 x 1 x 1 cm 4 Black - 7 x 1 x 1 cm 4 Dark Green - 6 x 1 x 1 cm 4 Yellow - 5 x 1 x 1 cm 6 Purple - 4 x 1 x 1 cm 10 Green - 3 x 1 x 1 cm 12 Red - 2 x 1 x 1 cm 22 White - 1 x 1 x 1