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在人教版九年级化学上册教材“燃料及其利用”单元中,为了培养学生的安全意识和探究能力,让学生更直观地认识可燃性粉尘在一定条件下能够发生爆炸,教材创设了一个问题探究情景,设置了粉尘爆炸实验来探究可燃性粉尘能否发生爆炸。因此,实验演示的成败直接关系到学
In the 9th grade chemistry textbook of the People’s Education Press, the “fuel and its use” unit, in order to develop students’ safety awareness and inquiry capabilities, students are more intuitively aware that combustible dust can explode under certain conditions. A problem-solving scenario was set up with a dust explosion experiment to explore whether combustible dust could explode. Therefore, the success or failure of the experimental demonstration is directly related to learning