The document discusses principles for building academic background knowledge through indirect approaches. It outlines six principles: 1) Students store knowledge in "memory records" of events they are involved in. 2) Students need multiple exposures to new content spaced several days apart with elaborations. 3) Instruction must target content-specific information while allowing personalization. 4) Teachers must provide basic terminology and concepts before "more" knowledge. 5) Vocabulary acquisition builds background knowledge through labeling memories. 6) Virtual experiences like reading and conversation enhance background knowledge. The document also discusses effective vocabulary instruction, noting dictionary definitions should not be the first exposure and there must be multiple exposures and discussions of new words.