学情分析:实验是学生学习化学、进行科学探究的重要途径,在化学课堂中充分展示实验的价值不仅可以提高学生的学习积极性,而且也对学生理解抽象的化学理论知识,突破教材重难点起着非常重要的作用。然而,在以往的化学教学过程中,我们常常忽视实验的价值,除了一些客观原因之外,就是教师在教学思想上忽视实验的作用。所以,在新课程改革下,教师要更新教育教学观念,要充分发挥学生的主观能动性,使学生在动手实验的过程中快乐地学习。在《二氧化碳制取的研究》教学中,教师要充分发挥实验的价 Academic analysis: Experiments are an important way for students to learn chemistry and conduct scientific inquiry. Fully demonstrating the value of experiment in chemistry class can not only improve students’ enthusiasm for learning, but also help students understand abstract theoretical knowledge of chemistry and break through textbooks A very important role. However, in the process of chemistry teaching, we often ignore the value of experiment, except for some objective reasons, that is, teachers neglect the role of experiment in teaching thought. Therefore, under the new curriculum reform, teachers should update the concept of education and teaching, give full play to students’ subjective initiative, and enable students to study happily in hands-on experiments. In the study of “carbon dioxide preparation,” teachers should give full play to the experimental price