How Do I motivate my 15 son??!!!

[humanoctopus]

I have a lovely,caring, pleasure to be around, etc., 15 year old son. He was great at school academically, but in the past 2 years, he doesn't make any effort to do his best(or even try hard) at exams, homework, etc. Its really worrying me as I feel his life is going down the loo, and no amount of talking to him about it is working. Anyone got any ideas? Or maybe went through this? Thanks.

[mumeeee]

I found that with DD2 the more I nagged her the less she did. I learnt to let her get on with things and just occansionly ask her about coursework and homework. She is now at uni and works hard.

[Earlybird]

Are his friends the same?

What is he interested in?

Could you set him some incentives/rewards for doing well?