Higher-order thinking, known as higher order thinking skills (HOTS), is a concept of education reform based on learning taxonomies (such as Bloom's taxonomy). The idea is that some types of learning require more cognitive processing than others, but also have more generalized benefits. In Bloom's taxonomy, for example, skills involving analysis, evaluation and synthesis (creation of new knowledge) are thought to be of a higher order than the learning of facts and concepts which requires different learning and teaching methods. Higher-order thinking involves the learning of complex judgmental skills such as critical thinking and problem solving.