Perhaps it might be a good idea to mention which Year or Years your children are in, if they are currently attending a school that follows the English National Curriculum. (The American educational system has "grades", whereas the English National Curriculum puts children into "years".)

Perhaps it might also be a good idea to make clear what subjects your children are studying or hoping to study. Lastly,

I would not bother reading posts from would-be tutors whose grammar and spelling are poor.