Teaching the physics behind a 3D cinema through experiments supported by ICT

In teaching physics, it is always a challenge to present three-dimensional (3D) objects graphically. The use of ICT can help in this respect. We report on how ICT enables a demonstration of how a 3D projection works by using 3D polarizing glasses and polarized light. The effect is well known because it is used in 3D cinemas and as such it is attractive for high school students. We prepared a workshop for high school students interested and talented in Physics to explain how linear and circular polarizing glasses for a 3D cinema work. We developed a set of experiments, supported by our computer animations and simulations to visualize complex physical effects involved. The workshop was held in January 2019. First, we orally assessed the knowledge that the attendees gained through the primary school and the first years of high school. Our assumption that their knowledge about polarization of light is inadequate was confirmed. After the workshop, we assessed the newly acquired knowledge by a written test. The assignments were set on different levels of the Revised Bloom's Taxonomy. Preliminary results, reported in this paper, show that ICT support significantly increases the level of knowledge achieved.