calculating with beads on wooden rainbow abacus for number calculation. Mathematics learning concept
Palabras clave
abacus,
academic,
adding,
addition,
arithmetic,
bar,
bead,
bead,
calculate,
class,
classroom,
colourful,
colours,
concentrating,
count,
counting,
development,
education,
elementary,
expertise,
frame,
homework,
intelligent,
kindergarten,
learning,
lesson,
manual,
mathematic,
mathematic,
many-coloured,
nostalgia,
number,
preschool,
row,
school,
science,
simplicity,
solve,
teaching,
tool,
toy
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