Provide "acknowledged body of knowledge" related to the concept. Emphasize the most significant aspects of the concept in an organized, organic manner. Present information sequentially so students see continuity. Draw attention to important, discrete details; don't swamp students with myriad facts.

Lesson on whale varieties. Informational films.

Objective: To introduce new vocabulary and specific information about whales.

Activity: Using photographs and drawings, teacher presents information about whale varieties. Students compare and contrast the following kinds of whales: humpback, blue, right, gray, sperm and orca. Students view National Geographic films "Magnificent Monsters of the Deep" and "Great Whales."

Assessment: Teacher verbal checking for understanding during instruction.