This is very normal and can be a common area of conflict between kids and parents. A few things to consider:
- parent expectations may need to shift
- usually if they are in a school sport they have to keep their grades up to play (which can be an external motivator)
- is your child being challenged enough at school? Smart kiddos can often get bored in school and it can look like they don’t care
- talk to the teachers and see what they are observing
- look into getting child assessed for any learning difficulties to see if they need any additional support at school (ex: adhd)