Declarative Knowledge and Procedural Knowledge
Dr. Reber defines "declarative knowledge" as "knowledge about the world that can be represented as consciously known, factual knowledge." He distinguishes this from "procedural knowledge," defined as "knowledge about how to do something." "Unlike declarative knowledge, procedural knowledge "lies outside an individual's realm of consciousness and might include knowing how to speak a language or how to tie a knot." Reber, Dictionary of Psychology, Third Edition, p. 381.
"Declarative knowledge" is acquired through "explicit learning". "Procedural knowledge" is acquired through "implicit learning."