Help students make connections in math with these colorful, engaging manipulatives. Plastic rods snap together to clarify addition, subtraction, multiplication, division, fractions, decimals, geometry, measurement, patterns, algebra and probability concepts in a visual and tactile way. Connecting feature makes manipulation and demonstration easier. Rods are marked in 1cm increments on one side. Includes 74 durable rods, designed for use with 2-3 students. Ages 4-13.