论文部分内容阅读
化学是一门以实验为基础的自然科学。大量的化学事实与化学知识来源于实验,同时许多的化学定理与猜想又通过实验来验证。所以,实验是化学这门学科的基石和工具。设计实验使化学教学变得生动有趣,充分调动学生的各种感官和积极主动性,使学与思相结合,不仅达到了传授知识的教学目的,同时还锻炼了学生自主解决问题的能力和独立思考的能力,培养了学生的观察能力与自主能动性。在实际教学中合理地运用设计实验,教师应注意提高实验安全系数,深入挖掘设计实验的探究性,合理而巧妙地设计实验情景,不断改进与优化实验方案。
Chemistry is an experiment-based science. A large number of chemical facts and chemical knowledge from the experiment, while many of the chemical theorems and conjectures and experiments to verify. Therefore, the experiment is the cornerstone and tool of chemistry. The design experiment makes the chemistry teaching vivid and interesting, fully mobilizes the various senses and proactiveness of the students, and integrates the learning with the thinking, which not only achieves the teaching purpose of imparting knowledge, but also exercises the students’ ability and independence to solve problems independently Ability to think, cultivate the students’ ability to observe and self-motivated. In the actual teaching of rational use of design experiments, teachers should pay attention to improve the safety factor of the experiment, dig deep exploration of design experiments, reasonable and clever design of experimental scenarios, and constantly improve and optimize the experimental program.