
Anderson and Krathwohl (revisers)
Anderson and Krathwohl are researchers who revised Bloom’s Taxonomy, a framework for categorizing learning objectives. Their revision updates the original hierarchy by clarifying and expanding the levels of cognitive skills involved in learning. They introduced a two-dimensional model: one hierarchy of thinking skills—like remembering, understanding, applying, analyzing, evaluating, and creating—and a knowledge dimension that ranges from factual to metacognitive knowledge. This helps educators design more precise learning goals and assessments, encouraging higher-order thinking skills and deeper understanding across various subjects.