Grady Julie R, Dolan Erin L, Glasson George E
Assistant Professor of Curriculum in the Department of Educational Leadership, Curriculum, and Special Education at Arkansas State University, P.O. Box 1450, State University, AR 72467.
J Agric Educ. 2010;51(4):10-19. doi: 10.5032/jae.2010.04010.
Students' experiences with science integrated into agriscience courses contribute to their developing epistemologies of science. The purpose of this case study was to gain insight into the implementation of scientific inquiry in an agriscience classroom. Also of interest was how the tenets of the nature of science were reflected in the students' experiments. Participants included an agriscience teacher and her fifteen students who were conducting plant experiments to gain insight into the role of a gene disabled by scientists. Data sources included classroom observations, conversations with students, face-to-face interviews with the teacher, and students' work. Analysis of the data indicated that the teacher viewed scientific inquiry as a mechanical process with little emphasis on the reasoning that typifies scientific inquiry. Students' participation in their experiments also centered on the procedural aspects of inquiry with little attention to scientific reasoning. There was no explicit attention to the nature of science during the experiments, but the practice implied correct, incorrect, and underdeveloped conceptions of the nature of science. Evidence from the study suggests a need for collaboration between agriscience and science teacher educators to design and conduct professional development focused on scientific inquiry and nature of science for preservice and practicing teachers.
学生在农业科学课程中融入科学的经历有助于他们形成科学认识论。本案例研究的目的是深入了解农业科学课堂中科学探究的实施情况。同样令人感兴趣的是科学本质的原则如何在学生的实验中得到体现。参与者包括一位农业科学教师和她的15名学生,他们正在进行植物实验,以深入了解科学家使一个基因失活的作用。数据来源包括课堂观察、与学生的对话、对教师的面对面访谈以及学生的作业。数据分析表明,教师将科学探究视为一个机械过程,很少强调科学探究典型的推理。学生参与实验也集中在探究的程序方面,很少关注科学推理。实验过程中没有明确关注科学的本质,但实践中暗示了对科学本质的正确、错误和不发达的概念。研究证据表明,农业科学和科学教师教育工作者需要合作,为职前和在职教师设计和开展侧重于科学探究和科学本质的专业发展。