A classic tool for mastering teen and tens numbers! This set includes two boards (Teen Board and Tens Board) with numbered slots and tiles, helping children understand number formation, sequencing, and place value from 11 to 99. Perfect for ages 4-7, this hands-on material builds a strong foundation in math, making learning numbers intuitive and fun. Ideal for Montessori classrooms or home learning environments. Inspired by Montessori methods, this activity builds a strong understanding of place value, logical thinking, and problem-solving skills, making math learning engaging and practical. "61.5*15*11cm"