3. “Optical illusions of physical nature”

The essence of the game: Students should determine whether there are any optical illusions of “physical nature” in the room. The team that notices and explains them wins. Students can walk, look around. These hidden illusions are prepared by the coach and may, for example, be a glass of water, magnifying glass (put on the table) spoon in a cup (refraction)…

OBJECTIVE: Active recreation with training of attention. Consolidation of the material and ability to see the unusual in the ordinary.