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课前预习是课堂教学必不可少的辅助手段,课前预习可以提高课堂学习效率,能调动学生的学习积极性,培养学生的自学能力.教师应引导学生正确对待课前预习,使课前预习成为课堂教学的得力助手.一、创设情境,诱发学生的探究欲望有时候课前预习容易使学生过早的获知结论,不利于激发学生的探究欲望.例如,在讲“水的组成”时,通过课前预习,学生对水中通入直流电会生成氢气和氧气,从而说明“水是由氢元素和
Pre-class preview is an indispensable aid in classroom teaching, pre-class preview can improve the efficiency of classroom learning, can arouse students ’enthusiasm for learning and develop students’ self-learning ability.Teachers should guide students to correct pre-class preview, First, the creation of situations to induce the desire of students to explore Sometimes pre-class preview easily lead to the conclusion of students premature, is not conducive to stimulate students’ desire to explore. For example, in the ”water composition“ , Through the pre-class preview, the students of the water into the DC will generate hydrogen and oxygen, thus indicating that ”water is composed of hydrogen and