The sensor abacus contains two rows of textured red and white beads that encourage children to think in groups of five and ten, helping to move from counting fingers to more abstract thinking and calculus.
Through it, children acquire basic mathematical skills such as counting to 20, collecting, subtracting and understanding a numerical composition.
Tactical beads make learning a engaging experience, especially suitable for children with visual difficulties, through the active involvement of the senses.
Suitable for classroom and homeschooling makes mathematics more understandable, affordable and fun. 
On request