The impact of a STS/Constructivist learning approach on the beliefs and attitudes of preservice science teachers

The purpose of this study was to determine the impact of an Science-Technology-Society (STS) course for preservice science teachers. The course was designed to change not only preservice science teachers' attitudes toward science, scientists and science courses, but also the awareness and use of STS/Constructivist approaches in teaching. It also focuses on changes in preservice science teachers regarding the effectiveness of an STS/Constructivist learning environment.;Both qualitative and quantitative research methods were used with and a one-group pretest-posttest design. The instruments were administered to the preservice science teachers at the beginning of the semester as pre-tests and again at the end of the semester as post-tests. Data gathered from pre- and post-administration were analyzed for each of the instruments that provide answers to the research questions. The sample consists of forty-one pre-service science teachers who were enrolled in the Societal & Educational Applications of Biological Concepts course during the spring semester of the 2004 and 2005 academic years at the University of Iowa.;The major findings for the study include the following: (1) Preservice science teachers showed significantly growth over the semester in their perceptions concerning STS/Constructivism, beliefs about science teaching and learning, and attitudes toward science and technology, and their implications for society. These significant changes were not affected by gender nor grade (elementary vs secondary) level. (2) Preservice science teachers gain in understanding of how students learn with STS/Constructivist approaches. They also increased their use of STS/Constructivist approaches which were developed and applied to teaching science for all students. (3) Preservice science teachers showed statistically significant growth toward an STS/Constructivist philosophy of science teaching and learning in terms of student actions in the classroom, as well as their increased understanding of science processes and content. (4) An STS/Constructivist approach provides student--centered learning environments that are relevant, motivational, and meaningful for preservice science teachers. Further, it encourages them to interact and to participate more actively in science classrooms.