Frequently correlating information from different sources helps your child understand concepts more deeply. And don't forget about trying literacy activities at home too. Usually two days before the test he studies a little bit, and winds up failing the test or getting a low mark. I tried every trick in the book, but nothing works. Thanks for your question.
Sixth grade is a transitional time for children.
While he may think he's old enough to take care of himself, he probably still needs reminders about homework and tests. The trick is to help him feel like he is in charge of the responsibility of studying. Perhaps you can work out a plan that you both agree on. If he knows he has chosen and committed to that time each day, he may be more willing to stick to it. Also, if it's just for an hour, he will see it has a clear beginning and END time.