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.

Define "scarcity"

Objective: To reinforce and define "scarcity".

Activity: Teacher-directed lesson defining scarcity.

Assessment: Verbal check for understanding.