What's this?
It's a teacher
What's this?
It's a rubber
What's this?
It's a door
What's this?
It's a bag
What's this?
It's a pen
What's this?
It's a whiteboard
What's this?
It's a pencil
What's this?
It's a window
What are these?
They're books
What's this?
It's a ruler
What's this?
It's a crayon