The document discusses learning curves and plateaus. A learning curve shows the rate of progress in learning over time and can take different shapes depending on the rate. A straight line curve represents uniform progress, a negatively accelerated curve shows progress starting high and slowing over time, and a positively accelerated curve is the opposite with progress starting low and increasing. A learning plateau is a flat, horizontal stretch on the curve where no improvement occurs despite repeated learning due to factors like task complexity, lack of attention, motivation or maturity of the learner. Adopting efficient teaching methods, arranging activities by difficulty, using aids, and providing rest can help eliminate plateaus.