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化学中每个概念的建立,每个定律的发现都有坚实的实验基础.学生的认识活动与科学家的创造活动都有本质相似的规律.实验能给学生创造良好的化学学习环境,使他们主动获取知识和发展能力,提高科学素养.实验从感性到理性,从具体到抽象,从简单到复杂,符合学生的认知规律与心理特点.因此,教师在教学中应加强实验教学,杜绝“板画”、“口述”实验,充分发挥实验的功效.这对培养学生的能力十分重要.
The establishment of each concept in chemistry, the discovery of each law has a solid experimental basis. Both the student’s awareness activities and the scientists’ creative activities have essentially similar laws. Experiments can create a good chemistry learning environment for students so that they can actively acquire knowledge and develop their abilities and improve their scientific literacy. Experiments ranged from perceptual to rational, from concrete to abstract, from simple to complex, consistent with students’ cognitive laws and psychological characteristics. Therefore, teachers should strengthen experimental teaching in teaching, put an end to “plate painting” and “mouthing” experiments and give full play to the effectiveness of experiments. This is very important for developing students’ abilities.