Optimization And Improvement Of Some Chemical Experiments In Senior High School Research On Application In Teaching

Chemical experiment is the most favorite teaching activity of the students, which can stimulate students’ interest and passion in learning chemistry, and it is an important method and means to train and develop students’ thinking ability and innovation ability and practice ability. But in actual teaching, the experimental teaching has been the problem of light process and heavy conclusion, which makes the teaching of chemistry experiment do not play its proper function and function. The research of chemistry experiment in senior high school, found that some of the chemical experiment is not good or bad, and the result is not ideal. In order to improve the teaching experience, operational and practical effect of the teaching material, combined with teaching experience, it is important to help and improve students’ scientific literacy, and to optimize and improve the teaching materials. This research is on the part of the experimental teaching material: optimization and improvement of combustion reaction of sodium and water and sodium in the air, aluminium burning in oxygen, iron and water vapor, chlorine bleaching, copper and concentrated nitric acid reaction, copper and dilute nitric acid reaction, sulfur dioxide bleaching, flame reaction, sodium carbonate and sodium bicarbonate and hydrochloric acid, ammonia fountain experiment, hydrogen and chlorine gas explosion experiment and application optimization improvement on the experiment with the original experiment teaching. Through the study of the optimization and improvement of the experiment to improve the intelligence of the experiment, can better stimulate students’ creative thinking, can make the students put forward problems, analyze problems and solve problems, cultivate students’ scientific inquiry ability, help students to learn chemistry knowledge, skills and methods, and promote the development of students’ cognition, the understanding of the nature of science and scientific spirit.