Lesson Plan: Calculating the Electric Current in a Wire Science

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to calculate the electric current in a simple circuit.


Students will be able to

  • recall that the coulomb is a unit of electric charge,
  • recall the unit symbol for the coulomb,
  • recall that the ampere is a unit of current,
  • recall the unit symbol for the ampere,
  • recall that one ampere is equal to one coulomb passing a point in a wire in one second,
  • use 𝐼=𝑄𝑡.


Students should already be familiar with

  • what electric charge is,
  • what electric current is,
  • what an electric circuit is,
  • the circuit symbols for some basic circuit components (e.g., a cell, a bulb, a buzzer).


Students will not cover

  • resistors,
  • Ohm’s law,
  • potential difference,
  • circuits with more than one path/parallel circuits,
  • using ammeters,
  • using voltmeters.

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