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.
Teacher lecture on: density, ratio, D=M/V.
Objective: To enhance student understanding of ratios, of solving equations, and of the use of lab equipment.
Activity: Explain definition of density as ratio of mass/volume, and discuss units used. Present equation D=M/V and how to measure quantities and solve equations.
