
Look at this stick.
A teenager ( / ) this.
What is it for?
Is it a hiking stick?
No, it’s not for ( / ) .
It’s for helping blind people.
Really?
How does it work?
It gives ( / ) by sound when they walk.
Oh, that’s so smart.
Look at this stick.
A teenager invented this.
What is it for?
Is it a hiking stick?
No, it’s not for hiking.
It’s for helping old people.
blind
Really?
How does it work?
It gives information by sound when they walk.
directions
Oh, that’s so nice.
smart
Look at this stone stick .
A teenager invented this.
What is it for?
Is it a hiking bag stick ?
No, it’s not for hiking.
It’s for helping tall blind people.
Really?
How does it work?
It gives directions by light sound when they walk.
Oh, that’s so smart.