Physics · Pedagogy of Physics

In a modern physics module, a teacher guides students to investigate electron diffraction to demonstrate the wave nature of matter. Using a high-voltage electron gun and a thin graphite crystal, students record diffraction patterns on a fluorescent screen. Some groups observe deviations from the expected ring patterns and hypothesize about crystal imperfections, electron beam divergence, and relativistic effects at high velocities. The teacher encourages quantitative analysis using the de Broglie wavelength formula, integrating special relativity corrections where needed. Students compare theoretical predictions with experimental data, and remedial sessions focus on reconciling discrepancies through problem-solving, error analysis, and visualization of matter-wave interactions. Which pedagogical approach MOST effectively addresses student misconceptions and promotes deep understanding in this experiment?