化学课演示实验需注意几点

• 作 者: 黄祎
• 机 构: 山西省大同市实验中学,
• 出 处: 辅导员
• 发表日期: 2013年15期
• 关键词: 化学课 化学演示实验 学生思维能力 感性知识 课堂演示实验 课堂教学效果 鲜明的形象 引导学生 学生心理 实验现象 实验技能 求知欲望 教师 化学学习 化学实验

化学演示实验是学生获得化学感性知识的重要源泉,要提高化学课堂教学效果,培养学生思维能力和实验技能,激发学生对化学学习的兴趣和求知欲望,就必须在课堂演示实验上下一番工夫。一、明确观察化学实验的目的性化学演示实验的任务,在于提供正确而有说服力的感性知识。教师借助演示实验中生动、直接、鲜明的形象,不仅要最大限度地满足学生心理的需要,更

Chemistry demonstration experiment is an important source of students’ access to chemosensitive knowledge. To improve the effect of chemistry classroom teaching, develop students’ thinking skills and experimental skills, stimulate students’ interest in chemistry learning and desire for knowledge, it is necessary to demonstrate experiments in the classroom. First, a clear observation of the purpose of chemical experiments Chemistry demonstration experiment task is to provide the correct and convincing perceptual knowledge. Teachers with vivid, direct, vivid demonstration of the experiment, not only to meet the needs of students psychology, but more