Help with high school physics

I personally have not been involved with physics for quite some time. My son is a freshman in high school and gets most of it but certain areas are giving him such problems that he is considering dropping the course. He does not want a tutor as he has been a straight A student for years so he is not interested in some other student teaching him. Any advice on what I should do? I know this is very basic for this web site but I thought I might as well ask the experts. Thank you in advance.

You can encourage him to form study groups with his classmates, they won't be teaching your son, but discussing each others' problems, this might help him to revive his interest and promote understanding of the difficult areas.