The simulation evolves the wavefunction in time according to the Schrödinger equation. It also implements discrete position measurements with variable resolution [10,11]. This makes possible a number of quantum measurement activities. For example, position measurements may be repeated automatically, with a specified frequency and number of measurements, and the results plotted in threedimensional space. This allows for an investigation of the quantum Zeno effect [10,12] at the introductory level, even though it is often regarded as an advanced topic. This echoes the relativity simulation, which allows the traditionally advanced topic of relativistic optics to be studied at the introductory level.