Department of Biology, Eastern Michigan University, Ypsilanti, Michigan, United States of America.
Department of Biological Sciences, Florida International University, Miami, Florida, United States of America.
PLoS Biol. 2019 Jul 18;17(7):e3000359. doi: 10.1371/journal.pbio.3000359. eCollection 2019 Jul.
Our first two experiments on adapting a high-structure course model to an essentially open-enrollment university produced negative or null results. Our third experiment, however, proved more successful: performance improved for all students, and a large achievement gap that impacted underrepresented minority students under traditional lecturing closed. Although the successful design included preclass preparation videos, intensive active learning in class, and weekly practice exams, student self-report data indicated that total study time decreased. Faculty who have the grit to experiment and persevere in making evidence-driven changes to their teaching can reduce the inequalities induced by economic and educational disadvantage.
我们最初的两项实验是将一种高结构课程模式改编应用于一所基本上实行开放式招生的大学，但结果是负面的或无效的。然而，我们的第三次实验证明更为成功：所有学生的表现都有所提高，传统讲授方式下影响代表性不足的少数族裔学生的巨大成绩差距也得到了弥合。虽然成功的设计包括课前预习视频、课堂内强化的主动学习以及每周的练习考试，但学生的自我报告数据显示，他们的总学习时间减少了。那些有勇气进行实验并坚持根据教学证据进行改变的教师可以减少经济和教育劣势所带来的不平等。
