Remember tablet arm chairs? The old stalwarts of “pack ‘em in” classroom design? The chairs have been unpopular with designers for years for a variety of reasons. They don’t stack, are hard to move around, and the tablets themselves are often too small for the needs of today’s students. But perhaps the most insidious problem with the chairs is a fundamental challenge to any classroom design: the backpack issue. Bags usually end up either on the floor or hanging on the back of the chairs, often rendering them unstable.