英文關鍵字
addition
arithmetic
baby
calculate
calculation
care
caucasian
child
childhood
children
class
classroom
colorful
daughter
education
game
geometry
girl
home
kindergarten
learn
lesson
little
logic
man
math
mathematic
mathematical
mathematics
mom
number
numbers
object
play
playschool
practice
preschool
preschooler
pupil
puzzle
room
school
shape
solve
student
study
teacher
together
women