Montessori Math System: Montessori 1-100 hundred number board, fully conform to Montessori preschool mathematics curriculum. Intuitively present 1-100 continuous number arrangement rules, help children master number order, number sequence, odd-even number distinction, counting rules and preliminary addition & subtraction logic High-quality Solid Beech Wood Safe Structure: Whole set adopts natural polished beech wood, smooth rounded edge without burrs and sharp corners. Wear-resistant blue square grid base, clear and not fading number cards Complete Supporting Matching System: Equipped with standard 1-100 number control board + classified numbered card storage box. Children can independently arrange, match and sort numbers, intuitively perceive number spacing, sequence logic and number combination rules, greatly improve number sense and orderly arrangement ability Kindergarten Universal Enlightenment: Perfect for Montessori classroom math area, preschool number cognition enlightenment, arithmetic auxiliary teaching, family parent-child math interactive games. Effectively exercise children's concentration, logical thinking Neat Storage & Ideal Math Learning Gift: Special partition wooden storage box for number cards, classified placement, easy to organize and store without loss. Exquisite professional Montessori math teaching supplies