Написать письмо на . на тему - проблема подростка в учебе, то есть её решить, и дать какие-либо советы.

letter to the teenager to help in learning and solving problems. that would be in school doing well need to keep up with the program and not be lazy in the classroom, all in record time. Not to Sass the teacher, not to argue if it is necessary to insist, to defend their point of view, if you got a bad grade from to fix it, good luck with your studies!