If your tween is having some challenges with grades, take time, together, to review his or her organizational skills. Take stock of the school bag, and you will probably have a good insight into whether this is an academic problem. Many tweens just shove their materials into their school bags, sling the backpack over their shoulders, and head to the next class. Lost papers? Forgotten assignment? No surprise, if the book bag is a disaster.
The following articles broach the issue of organization issues with the tween school bag:
Organizational and Academic Help for Middle School Students
Tween School Bags, and Academic Success