Unlike college, where you may only need three or four books a day, our students haul every book and notebook for 7 classes every day. (And some backpacks hold a change of clothes for athletic practices, too!) I have no idea how much the average backpack weighs, but they are heavy!
Some of the packs are about as big as the kids carrying them! (My 2nd hour girls agreed to line up for a backpack picture.) I figure the choirpractors of our community are going to get a boost in business. Our students walk quite a few blocks every day with their entire world on their back.
So all those backpacks end up clogging the aisles of our already crowded trailers. We tread carefully when we walk around our rooms. (Sometimes it is easier to stay put!)