Bloom's Taxonomy shows that there are levels of learning. At the very basic level is simply recall of facts, Bloom noted that the highest from of learning is the ability to evaluate and to create something new with the learning. Costa's Levels of Questioning suggests that deeper levels of learning can be achieved with the asking of better or higher questions. At the basic level are questions which ask students to identify or to define. The middle level asks questions which compare, classify, and contrast. The highest level of questioning involves asking the student to evaluate. The two systems are comparable. These systems both involve depths of knowledge (DoK). Another good way to see Depths of Knowledge.
Start viewing at 1:55 (the video is part of AVID training video.) Link to Video in case you have problems viewing.
Video also available here.
Resources: DoK Question Stems
(For fun - Seinfeld's Bloom Taxonomy)
Academic Language Demand in the the LMU Lesson Plan Template: