students :
students
a child :
a child
pencils :
pencils
a clock :
a clock
a computer :
a computer
a desk, a computer, a notebook :
a desk, a computer, a notebook
a piece of paper :
a piece of paper
a teacher, a board :
a teacher, a board
map :
map
a notebook :
a notebook
a pencil sharpener :
a pencil sharpener
a woman :
a woman
pens :
pens
a table :
a table
chidren :
chidren
dictionary :
dictionary
women :
women
an eraser :
an eraser
a board, markers :
a board, markers