Second Barrier to Learning:
"Too Steep a Study Gradient"
A gradient is a way of learning or doing something step by step. A gradient can be easy where each step can be done easily, or it can be hard where each step is difficult to do.
Too steep a gradient consists of not having mastered prior skills before going onto more complicated or detailed steps.
A student who has skipped a gradient may feel a sort of confusion or a feeling of reeling (i.e. moving or swaying like you might fall).
These are two reactions a person will have when they have missed a step or hit too steep a gradient in the subject they're studying.
This is often referred to as "missed basic skills" or "insufficient basic skills".