Cognitive load theory (CLT)
Working memory ability is a crucial determinant of academic achievement, according to the CLT. As working memory has a finite capacity, it often becomes overwhelmed while processing complicated instructional content. Working memory has to be able to withstand the demands of learning in order to learn well. Therefore, instructional methods should be carefully structured to exert the right amount of cognitive burden on working memory in order to assure learning success [Sweller [