In, On, At - Prepositions of Place

[whoseen]

Generally, we use at, in and on when we talk about the l o c a t i o n of things.

What do the prepostions in these three things tell us about the lo ca tions ?

"Meet Simon at the end of the road."
"You left your glasses in the bathroom."
"Is that a spider on the wall?"

At: a Point
At tells us that the following noun is located at a specific point . It shows an exact position.

"She's waiting at the entrance."
"He's sitting on his chair at his desk."
"I work at a bank."

In : an Enclosed Space

In tells us the noun is in an enclosed space (surround or closed off on all sides). Basically, when something is inside something.

In a box.
In a room.
In a country.

On:a Surface

On tells us that the following noun is located on a surface. Use on when one thing is attatched to or touching somthing.

On the table.
On the floor.
On the chair.