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 provides info on viruses.
Objective: To teach the biology of viruses, using the AIDS virus as an example of a virus and to introduce the workings of the immune system.
Activity: Using overhead, chalkboard and electron micrographs of viruses, the teacher provides factual information on viruses including: the definition of a virus; the parts of a virus; the workings of the lyric cycle using a bacteriophage as an example; the role of interferon; examples of viral infections; what AIDS stands for; how it is contracted; why the AIDS virus is so deadly.
