Could you correct me?
I remember our class dissecting frogs during a science class in elementary school.
Unfortunetly, the frog our team had was gone with its belly open.
I felt bad for the frog.
We didn't get good results from the dissection that we were supposed to get and I thought why we've done that.

I think animal dissections should be banned in schools?
Without satisfying animals, we can get good information from Internet like video clips.
If we want to become vets or something, dissecting animals certainly would require in a university.
But if we don't, I think we don't need to dissect animals in schools.
I think it’s immoral to unneceserily hurt any animal.

Question

Could you correct me?
I remember our class dissecting frogs during a science class in elementary school.
Unfortunetly, the frog our team had was gone with its belly open.
I felt bad for the frog.
We didn't get good results from the dissection that we were supposed to get and I thought why we've done that.

I think animal dissections should be banned in schools?
Without satisfying animals, we can get good information from Internet like video clips.
If we want to become vets or something, dissecting animals certainly would require in a university.
But if we don't, I think we don't need to dissect animals in schools.
I think it’s immoral to unneceserily hurt any animal.

Answer

Hello! Your writing is very good~

We didn't get good results from the dissection that we were supposed to get and I thought why we've done that.
Correction: We didn't get the expected results from our disection, and I thought about why this had happened. 
(What you had written is correct, but you could shorten it a bit!)
I think animal dissections should be banned in schools?
Correction: use a period instead of a question mark becuase you are making a statement~

If we want to become vets or something, dissecting animals certainly would require in a university.
Correction: would require training in university
Good job~~ I hope this helped if you have any questions feel free to ask ^_^

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