一、开设家庭小实验的意义(一)加强了化学教学与日常生活、生产的联系。化学中的概念、原理都比较抽象、枯燥,家庭小实验起到了联系化学内容与日常生活的作用,使学生感到生动、有趣。例如,平日学生对蜡烛的燃烧、铁生锈、石灰池中的变化等现象视而不见,通过家庭小实验,让学生感受到生活中处处有化学,生活中离不开化 First, the significance of opening a small experiment (a) to strengthen the chemistry teaching and daily life, production links. The concept of chemistry, the principles are more abstract, boring, family experiments have played a role in contact with chemical content and daily life, so that students feel vivid and interesting. For example, weekdays students turn a blind eye to such phenomena as the burning of candles, the rusting of iron, the changes in the lime pool, etc. Through small experiments at home, students can feel the chemistry everywhere in their lives,