WHAT'S THIS?
BOARD
WHAT'S THIS?
WINDOW
WHAT'S THIS?
BOOK
WHAT'S THIS?
PAPER
WHAT'S THIS?
CUPBOARD
WHAT'S THIS?
PEN
WHO IS THIS?
TEACHER
WHAT'S THIS?
PENCIL
WHAT'S THIS?
BOY
WHAT'S THIS?
RULER
WHAT'S THIS?
BOOKCASE
WHAT'S THIS?
WALL
WHAT'S THIS?
RUBBER
WHAT'S THIS?
SCHOOLBAG
WHAT'S THIS?
DOOR
WHAT'S THIS?
PLAYGROUND