A protein lacking one of the 20 common amino acids is a protein lipogram. This open-ended problem-based learning assignment deals with the evolution of proteins with biased amino acid composition. It has students query protein and metabolic databases to test the hypothesis that natural selection has reduced the frequency of each amino acid…

Argues that a democratic citizenry must be technologically literate and able to analyze data to make wise decisions. Illustrates how one Redmond, Washington, sixth grade social studies class used databases to show the changing nature of information and computer applications in social studies units. Stresses the relationship between information…