I would write the sentence as the following:
Teachers have so many responsibilities and for that reason, it is beneficial for everyone to have as much help as possible.
A teacher has so many things that they are responsible for and for that reason; it is beneficial for everyone to have as much help as possible.
Is this sentence correct or should it be a comma after reason?
5 answers
The reason I changed teacher to teachers is because I feel a though you're mixing singular with plural because you later on go to say 'they' when you used the singular form of teacher earlier
Thanks
There should also be a comma after "responsibilities" -- but I doubt you'll see this since the posts above were made in the wee hours of the morning!
THANK you I did put the comma before responsibilites.