An In-class Growth Curve Critical-Thinking Active-Learning Activity

  • Authors: Donald Breakwell1, Susan Merkel2, Janice Haggart3, Susan Pfiffner4
    Affiliations: 1: Department of Microbiology and Molecular Biology, Brigham Young University; 2: Cornell University; 3: North Dakota State University; 4: University of Tennessee
  • Citation: Donald Breakwell, Susan Merkel, Janice Haggart, Susan Pfiffner. 2006. An in-class growth curve critical-thinking active-learning activity.
  • Publication Date : October 2006
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This is a two-part paper-based in-class activity for a class of any size that deals with the concept of growth curves. Given a set of data, students should be able to plot a growth curve and calculate the doubling time and growth rate. Students then predict how the growth rate will be affected by changing nutrients, oxygen, and physical conditions (such as pH, temperature, and salt). Students will demonstrate that they have successfully learned the exercise objectives when they can plot the growth curve, calculate the growth rate, and predict the changes in the growth curve given new information. The understanding of the growth curve concept may be assessed by exam questions.

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