MAB or Base Ten Blocks for touch

thingiverse

MAB, Base Ten Blocks or Diene Blocks are a common classroom tool used to teach basic mathematical concepts including units, addition, subtraction, multiplication, and number sense. Standard MAB blocks have smooth grooves to indicate divisions into single units, making it easy for children who are blind or have low vision to feel the units. These blocks have been designed with outward grooves for easier counting by touch. The blocks come in two styles - a flat base (perfect for printing) and an indented base (ideal for stacking). Choose your preferred style!