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初三年级是化学学科的起始年级,认真指导起始年级的学生实验,对培养学生实验的基本技能和观察、思维、独立操作的能力,严肃认真的求实态度和探索科学的正确方法,都有着十分重要的意义。 学生实验分为实验作业和实习作业。初三年级的学生实验常采用以下四种教学方法:①先演示后练习(教师示范学生模仿)②边讲边做实验(教师讲学生做);③先预习后操作(教师说
The third grade is the beginning grade of the chemistry discipline. It carefully guides the students in the initial grade. It has the basic skills for training students’ experiments and their ability to observe, think, and operate independently. They are serious about seeking truth and seeking the correct methods of science. It is of great significance. Student experiments are divided into experimental assignments and internships. The third grade student experiment often uses the following four kinds of teaching methods: 1 first demonstration after the practice (teacher demonstration student imitation) 2 side talk to do the experiment (teacher speaks the students to do); 3 after the preparatory operation (teacher said