How could I help my child to become more responsible for his own learning?

That really depends on the child, age and how you parent.

Our kids are home schooled and I think that helps an awful lot with responsibility in general then sending them else were for schooling. You can direct them set the bar and discipline when necessary and more efficiently if your right there and the one teaching them.

However if you put your kid in some other school and home schooling is not something you are doing to do.

I recommend these two books to help you in general. the principals if your a christian or not are valid and work wonders and will help you.

To Train Up a Child- By Micheal Pearl
What the bible says about child training- By Richard Fugate

(Richard fugate put his kids in public school and the pearls home schooled)

Both books have excellent advice for character building and teaching responsibility that can be applied to education.

Of your child is going to school I think it is a little more difficult to teach them to take charge of their own learning, since it is just not the environment encouraged in school, I would start in the home, and require them to do things that are fun but beneficial to the brain ( not video games) if they are younger this is not going to work on a teenager.

If the kid is older then it is more about discipline then trying to stimulate them, there has to be a consequence for slack when it comes to school. And it is not going to work if your not consistent and slack your self on the discipline part. Kids will test and try you and try to get their way, you have to be the authority not them regardless of age. Responsibility in general is a character trait all children should be taught to a high standard and sadly it is not something every parent cares about doing, it is good you want your child to be more responsible it best for them to learn as a kid then try to as an adult.

Good luck