I think you must mean Bloom's Taxonomy. Yager, with McCormick created a taxonomy of teaching and learning science in 1989 that incorporated five categories or domains of science education. The domains were organized by importance: (a) Knowing and understanding (scientific information), (b) exploring and discovering (scientific processes), (c) imagining and creating (creative), (d) feeling and valuing (attitudinal), and (e) using and applying (application and connections). The taxonomy listed what students could do or learn in each domain. McCormick and Yager argued that too often, schooling limited students to the first two domains and that the other three domains needed to be included more often in instruction. They didn't address math education however.