'Master abacus 21 rod' presentation slideshows

Master-Abacus-Suppliers

This large sized Teacher Abacus is one of the main tools used by the Abacus Teachers to brain train Abacus Students for showing and displaying the Abacus calculation methods in an Abacus Classroom Activity. Children learning Abacus find it easy and practical to understand the methods while the Abacus Teacher show them it on Master Abacus and Teacher Abacus

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