The document discusses Bloom's Taxonomy of Learning Domains, which classifies educational goals into cognitive, affective, and psychomotor domains. Each domain contains hierarchical taxonomies ranging from simple to complex thinking skills and behavior. The cognitive domain includes knowledge, comprehension, application, analysis, synthesis, and evaluation; the affective domain includes receiving, responding, valuing, organization, and internalizing values; and the psychomotor domain includes imitation, manipulation, precision, articulation, and naturalization.