Cognitive load and efficiency in learning -- The psychology of efficiency -- Use visuals and audio narration to exploit working memory resources -- Focus attention and avoid split attention -- Weed your training to manage limited working memory capacity -- Provide external memory support to reduce working memory load -- Use segmenting, sequencing, and learner pacing to impose content gradually -- Transition from worked examples to practice to impose mental work gradually -- Put working memory to work with germane load -- Accommodate differences in learner expertise -- Use rapid testing to adapt e-learning to learner expertise -- Applying cognitive load theory -- The evolution of cognitive load theory : a personal perspective / by John Sweller.