Evaluation of an Examination in Biochemistry and Molecular Biology

This work was aimed at assessing one of the examinations applied to the students enrolled in courses of Biochemistry and Molecular Biology at the School of Medicine, UNAM. We analyzed a f＇mal examination in this subject. The test consisted of 80 multiple choice questions. The database was exported to Excel and then to the SPSS 16 statistical software for statistical analyses. The following techniques were used： （1） dificulty index （Pi）, （2） discrimination index （Di）, （3） discrimination coefficient （rpbis）, and （4） Cronbach＇s alpha. Those questions that complied with 3 of the 4 mentioned techniques were considered acceptable; of the 80 questions, only 25 were accepted corresponding to 31%. The topic with the largest number of accepted questions was Water and pH （75%）, and the topics without accepted questions were Bioenergetics and Hormones （0%）. It is recommended that the faculty members that elaborate multiple choice examinations must know the subject, and should have a formation in didactics and educational methodology.

新高考背景下高中地理教学的适应性现状分析

高考招生制度改革是国家教育体制改革中的重点领域和关键环节。福建省于2018年启动新高考,在此背景下,高中地理的学科地位、教学内容、教学组织形式等发生了一系列变化,给高中地理教学带来了一定的机遇与挑战。为了解福建省新高考对高中生选考地理及高中地理教学的影响,本研究以福建省马尾区某中学为例,选取高一、高二及高三年级的212名学生开展调查研究,结合长时间的课堂观察和对一线教师的访谈,分析了当前福建省高中生选考地理学科的意愿和影响因素,以及地理教师对新高考的适应性情况,阐述新高考对高中地理教学的影响并提出相应策略。结果表明:第一,在新高考制度下,福建省愿意选考地理的学生人数增多,地理学科地位有所提升;第二,影响学生选考的因素较多,其中兴趣是最大的影响因素;第三,面对新高考,高中生和地理教师面临着新的问题与挑战。