Julie's work:

My New Year's resolution is healthy and 2015, right to have some fun.
And 6th grade, I will meet good friends and teacher.
Also, I want to have a very happy school life too.
Hear well parents word that will be a good boy.
Well parents and I want to help you.
This certainly will try to keep their promises.
I promise!

Correction:

My New Year's resolutions is to have a healthy 2015, and to have some fun.
Explanation:
* Usage of Prepositions:
Prepositions tell us where or when something is in relation to something else. Frequently, prepositions are used to tell us where one noun is in relation to another.
* Proper usagae of Conjunctions and auxilliary verb.

Soon, I will be a 6th grader, I will meet good friends and teacher.
Explanation:
* Choice of words: Verb
Verbs are actions words. Being able to use the right verb makes the sentence completely understandable.

I also want to have a very happy school life too.
I will listen well to my parents to be a good girl.

Explanation:
* Word order
Proper arrangement of words also plays an important role in a sentence. It makes the subject of a sentence more visible.

I will always help my parents.
I certainly will try to keep these promises.
I promise!

COMMENT:
Hi, Julie!
Happy New Year! It's 2015 now and I am happy to read your new year's resolution. I hope that you will be able to achieve your promises. I am excited to see you later. Thank you for sending me your homework!
-Teacher Joanna