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为了加强实验教学,提高化学教学质量,需要对学生实验能力有一个正确的估价,所以本学期初我们对高二四个班级进行了一次实验考查。一、目的要求1.使学生懂得化学实验是教学的重要内容,是提高化学教学质量的重要一环。要求学生在今后的学习过程中要重视实验,认真做好实验,努力完成各项实验要求。 2.检查学生对常用仪器的使用和实验操作技能掌握的情况,发现错误,及时纠正,通过加强个别辅导,使学生在原有基础上有所提高。二、考查内容1.大纲中规定的各年级仪器使用技能和实验操作技能要求的内容。 2.抽查学生实验(1)由KMnO_4制取O_2。(2)制取H_2及H_2纯度检验。(3)粗盐的提纯。(4)配制一
In order to strengthen experimental teaching and improve the quality of chemistry teaching, we need to have a correct assessment of students’ experimental ability. So at the beginning of this semester, we conducted an experimental examination of the high 4 class. I. Objectives 1. To make students understand that chemistry experiment is an important part of teaching and an important part of improving the quality of chemistry teaching. Students are required to pay attention to experiments in the future learning process, do a good job of experiments, and strive to complete the requirements of the experiment. 2. Check students’ use of commonly used instruments and the mastery of experimental operating skills. Find errors, correct them in time, and strengthen individual tutoring so that students can improve on the original basis. Second, the contents of the examination 1. The outline of the provisions of the various grades of instrument skills and experimental skills required for the operation of the content. 2. Spot-check students’ experiments (1) Preparation of O_2 from KMnO_4. (2) Preparation of H2 and H2 purity tests. (3) Purification of crude salt. (4) Preparation 1