Help! My Brain is Overloaded!

Help! My Brain is Overloaded!, states that most students are taught the wrong way. The Cognitive Load Theory says that working memory is limited when learning new information, but not as limited for long term memory. This article states that the brain is only able to handle limited amounts of new information at any one time. It says that almost all information in working memory goes after 20 seconds, unless you repeat it or try and commit it to memory. This theory says that it would make more sense to give students solved problems which can be worked in later, than to give them problems to solve, as that puts a lot of strain on working memory.