Abacus Representing Early Math Learning and Educational Counting Tool
Schlüsselwörter
abacus,
mathematic,
learning,
education,
counting,
calculating machine,
tool,
number,
arithmetic,
children,
numeracy,
school,
calculation,
children,
teaching,
study,
student,
bead,
count,
elementary,
childhood,
mathematic,
academic,
numeric,
training
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