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化学实验是化学科学的基础,能有效地培养和发展学生的观察能力、实验能力、思维能力、自学能力和创新精神。 1 运用实验教学培养学生的观察能力和思维能力 观察是通过感官对外界现象或信息的感知活动,它是“认识活动的起点”观察能力是科学进行观察活动的本领,不仅是认识世界的基本能力,而且还是学习自然科学的一种专业能力。实验教学中观察内容有:物质的状态、颜色、气味、溶解性等;化学变化中的能量、质量、颜色变化、沉淀和气体的生成;实验装置和规范性操作。这些是教学过程中最重要、最经常的观察对象。 增大观察活动的量,提高观察活动的质,是提高观
Chemical experiments are the basis of chemical science and can effectively train and develop students’ observation ability, experimental ability, thinking ability, self-learning ability and innovative spirit. 1 Using experimental teaching to develop students’ observation and thinking skills Observation is through sensory perception of external phenomena or information. It is “a starting point for recognizing activities” Observing ability is the ability to carry out observation activities scientifically. It is not only the basic ability to understand the world. , but also a professional ability to learn natural sciences. Observations in experimental teaching include: substance status, color, odor, solubility, etc.; changes in energy, mass, color, precipitation, and gas generation in chemical changes; experimental devices and normative operations. These are the most important and frequent observations in the teaching process. Increasing the amount of observation activity and improving the quality of observation activities is to improve the concept of