英文關鍵字
arithmetic
background
beautiful
board
caucasian
chalk
child
childhood
class
classroom
communication
concept
copy
draw
education
elementary
female
girl
grade
hand
handwriting
happy
indoors
junior
kid
knowledge
learn
learner
learning
lesson
little
math
mathematics
people
person
primary
pupil
school
schoolgirl
simple
smart
student
study
studying
task
teaching
write
writing
young
youth