Writing prompt: Notice

Student essay:
Fellow students,
Our class are going to Green Farm this Friday morning. In order to have a fine day in farm, here's some attention that everyone should remember.
First of all, we should meet at school gate at seven o'clock so we can arrive at the farm on time. We'll go to the Farm by a coach. Everyone mustn't be late unless you have something wrong with your body. If this kind of situation appears, you should talk to our head teacher.
Secondly, we are going to the Farm to experience the farmer's life. We 'll not only picking up vegetables, but also water the plants. The whole activity will last for two hours. Everyone should pay attention in other one because there may some water puddles.
The Last thing is that I hope you all can work together happily. We are on behalf of our school.
Thank you for your attention.

Corrected essay:
Fellow students,
Our class is going to Green Farm this Friday morning. In order to have a fine day on the farm, here's some attention that everyone should remember.
First of all, we should meet at the school gate at seven o'clock so we can arrive at the farm on time. We'll go to the farm by coach. Everyone mustn't be late unless something is wrong with your body. If this kind of situation appears, you should talk to our head teacher.
Secondly, we are going to the farm to experience the farmer's life. We'll not only pick up vegetables, but also water the plants. The whole activity will last for two hours. Everyone should pay attention to one another because there may be some water puddles.
The last thing is that I hope you all can work together happily. We are on behalf of our school.
Thank you for your attention.