Complex sentence: Classes that are too one-dimensional, that fail to involve students sufficiently, are too challenging or are very much information heavy (leaving little room for discussion and consideration), will not satisfy students' curiosities or needs for authentic intellectual stimulation.
Split into simpler sentences: Classes that are too one-dimensional, that fails to involve students sufficiently, are too challenging or are very much information heavy. Leaving little room for discussion and consideration will not satisfy students' curiosities or needs for authentic intellectual stimulation.