DS is just coming to the end of year 8. He's always been fairly bright, top set in some subjects, but is pretty lazy and his default is the bare minimum.
He's doing ok but has slipped a bit in some subjects. I am not sure how much effort he makes in the classroom and I definitely got feedback at the last parents evening that he had slipped in some subjects due to lack of attention/ application. He's recently described himself a couple of times as 'stupid' so his confidence has been knocked.
My question is, what is the best way to deal with this. I am obviously concerned that he reaches his full potential at school but also don't want the next three years to be a battleground of me nagging him about school. I do pull him up when I see sloppy homework but I don't monitor every bit he does. He needs to develop a better attitude to school and I am not sure how to help him do this.