At Washington University in St. Louis, we have developed a set of four Web-based tutorials about the chemical processes in the blood, to use as part of the general-chemistry sequence. These tutorials provide integrated biological context for a variety of chemical concepts including metal complexes, spectroscopy, polarity, molecular size, diffusion, and equilibrium. The tutorials build upon one another to help students develop an understanding of the physiological and chemical processes that occur in the blood. Each tutorial accompanies an experiment, and the key concepts of each tutorial complement the key concepts in the corresponding experiment. The students must answer questions that are interspersed throughout the tutorials and the tutorial questions are worth 20% of the grade for each experiment. These tutorials have been very successful in our laboratory course. They are available on the Web at http://wunmr.wustl.edu/EduDev/LabTutorials/ (accessed August, 2001).

Featured on the Cover