Do The Physics Demonstration Experiments On The Blackboard In Middle School

Demonstration experiment is a common experimental method in physics teaching.In class,the use of demonstration experiment teaching can combine physics experiment phenomenon with physics law and physics concepts organically,making the students more vivid,increasing students' interest in physics learning,enhancing students' ability of thinking and exploring independently,thus improving the effect of physics teaching.In western China,the traditional demonstration experiments come up against difficulties: there are too many students in one classroom,so it is difficult for the students to see the experiment phenomenon clearly,students' participation is low,only a few students can participate in the experiment,which is hard to improve student`s interest;the school do not have enough experimental equipment,making the demonstration experiment course particularly difficult.In this study,the traditional demonstration experiment is innovated and improved,and the demonstration experiment is moved from the platform plane to the blackboard plane.First of all,the blackboard plane can accommodate larger experimental equipment,which can be well adapted to the teaching of large classes;second,in the process of experiment,we can use the blackboard to add notes,notes or diagrams in real time,which makes the phenomenon of experiment more intuitive and students can understand and remember the knowledge easier;third,many experimental teaching aids are made together with students,they can Participate in the experiments more often.