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Activity Industry Sector
Health Science and Medical Technology

Activity Originally Created By: Tina Doss

Analysis

Part of Lesson Plan: Ouchterlony Test: Antibody Simulation

Activity Overview / Details

Students perform trials 2 and 3 on the remaining two agar plates after meeting with the teacher.  Plates sit overnight allowing for time for molecules to diffuse through the agar.

Students analyze plates 24 hours later.  Slides 19 through 24 explain how students convert results into numeric data, collect data in tables, and take averages.

Teacher enphasises that when students have an average of zero indicates that all three trials received a zero.  Teacher may have to help students connect that a zero signifies the patient is not allergic to the antigen.

Have the class share individual averages on a class average table.  Have the class average table up on the Smart Board and students type in their results.  Again, emphasize that a class average of zero is 12-16 other groups’ averages, signifying that the zero result occurred 36-48 other times.  The more trials, the more accurate the data.  This is an excellent place where teachers can emphasize consistent data in science and the significance of consistent data.