Underline the prepositional phrase in each sentence below.

1. My dad was over the hill when he turned fifty-one years old.
2. We walked up the stairs.
3. My mom took walk around the block.
4. I looked under my bed.-I feel that under my bed is the prepositional phrase. Please let me know if I am correct on this.
I am a bit confused on this can you assist me with 1-3 please.

For number 2 is up the stairs the prepositional phrase?

You're correct for #4.

http://www.chompchomp.com/terms/preposition.htm
Read this carefully, and study that list of prepositions. Then let us know what you think about #s 1-3.

Right for 2, also.

On number one would over the hill be the prepositional phrase?

yes

On number 3 would the prepositional phrase be around the block?

Please advise

Yes, around the block is a prepositional phrase.

Thank you Ms. Sue. I appreciate your help on this. This is something new we are learning in school.

If you can identify the prepositional phrases, figuring out the rest of the sentence is easy.

On #13 is there only 1 or 2 prepositional phrases?