Experiences

Experiments is an incentive for students

V.A.

Romania

High Secondary School

Physics, Science

Teaching in class

Direct

Doing experiments is an incentive for students. Some of them are very simple and accessible but they will stick in our students ’mind for a long time. I learned this lesson as a student. I still remember an experiment we did when as I was a student myself. We used a light ball, in fact it was a ping pong ball. We also needed a hair drier. I remember the ball was balanced in the air stream of the hair dryer. It was incredible and we couldn’t believe it until our teacher allowed us to try it ourselves. We asked for an explanation and that was how our teacher introduced Bernoulli’s principle. (According to Bernoulli's Principle, the pressure in the fast-moving air stream is less than the pressure of the surrounding quiet air. If the ball strays from the air stream, the surrounding higher pressure air tends to push it back). I also learned to look for explanations and try to find them myself.