Lesson Plan: Electrocardiography Physics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to analyze graphs of electrocardiograms corresponding to heart rhythms.


Students will be able to

  • recall that a graph of electric potential against time representing the cardiac cycle is called a cardiogram,
  • recall that a cardiogram consists of a sequence of the following features: atrial and then ventricular contraction, followed by ventricular and then atrial relaxation,
  • recall typical values of time intervals between the features of the cardiac cycle for a normal cardiac cycle,
  • recognize atrial and ventricular contractions and relaxations in electrocardiograms,
  • distinguish between normal and abnormal cardiac rhythms.


Students should already be familiar with

  • graphs of time variation of quantities.


Students will not cover

  • changes in any quantities relating to the cardiac cycle other than electric potential difference.

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