Hakan Akcay

Comparison of Student Learning Outcomes in Middle School Science Classes with an STS Approach and a Typical Textbook Dominated Approach.

Abstract The purpose of this study was to determine whether Science, Technology, and Society (STS) learning increases student concept mastery, general science achievement, use of concepts in new situations, and attitudes toward science in middle school classrooms. The study involved two teachers and fifty-two students in grades 6 through 8. Two sections of middle school science were taught by two longtime teachers where one used an STS approach and the other retained a typical use of the textbook as a class organizer. Each teacher administered the same pre- and post-assessments. Major findings indicated that middle school students experiencing the STS format with constructivist teaching practices: (1) learned basic concepts as well as students who studied them directly from the textbook, (2) achieved as much general concept mastery as students who studied in a textbook dominated way, (3) applied science concepts in new situations better than students who studied science in a more traditional way, (4) developed more positive attitudes about science, (5) exhibited creativity skills that were more individual and occurred more often, and (6) learned and used science at home and in the community more than students in the typical textbook dominated section. Further, the STS approach coincided well with the kind of teaching across the curriculum that is (recommended as) central to teaching in middle schools.

Comparing science learning among 4th-, 5th-, and 6th-Grade Students: STS versus textbook-based instruction

Fifteen 4th-, 5th-, and 6th-grade teachers from five school districts each taught two sections of science —one with a Science-Technology-Society (STS) approach and the other with a more traditional textbook approach in which basic science concepts were the major organizers. Local, current, and personally relevant issues provided the context and organizational scheme for the STS section. The two approaches were evaluated using six different domains: (1) Concept, (2) Process, (3) Application, (4) Creativity, (5) Attitude, and (6) Worldview. The results indicate no difference in results at any grade level in the Concept domain. However, significant differences in terms of learning with large effect sizes were found in the other five domains. STS provided an impressive teaching approach utilizing the features of the National Science Teachers Association’s (NSTA) (2006) position paper regarding STS in all assessment domains.

Accomplishing the Visions for Teacher Education Programs Advocated in the National Science Education Standards

The purpose of this study was to investigate the advantages of an approach to instruction using current problems and issues as curriculum organizers and illustrating how teaching must change to accomplish real learning. The study sample consisted of 41 preservice science teachers (13 males and 28 females) in a model science teacher education program. Both qualitative and quantitative research methods were used to determine success with science discipline-specific “Societal and Educational Applications” courses as one part of a total science teacher education program at a large Midwestern university. Students were involved with idea generation, consideration of multiple points of views, collaborative inquiries, and problem solving. All of these factors promoted grounded instruction using constructivist perspectives that situated science with actual experiences in the lives of students.

The Effects of Varied Inquiry Experiences on Teacher and Student Questions and Actions in STS Classrooms

The purpose of this study was to examine how different inquiry experiences affect in-service science teachers’ performance in terms of their questions and classroom actions. Teachers in a workshop experience proceeded through structured, guided, and full inquiry stations where materials to make foam were provided. Participants were 26 in-service science teachers who were enrolled in an 8-day workshop learning about science-technology-society (STS) approaches to teaching. Those who experienced full inquiry first resulted in more curiosity, more questions, and more unique experiments than at the other two stations. Success in guided inquiry was observed when the guidance was provided by more open-ended questions posed by the leader teachers. The study raises questions concerning the limitations on student thinking when in structured and guided laboratories that characterize traditional science teaching. An analysis of this study may contribute important direction and information for science teaching and learning and encourage more moves for STS successes.

Choices of Pre-Service Science Teachers Laboratory Environments: Hands-on or Hands-off?.

Learning in laboratories for students is not only crucial for conceptual understanding, but also contributes to gaining scientific reasoning skills. Following fast developments in technology, online laboratory environments have been improved considerably and nowadays form an attractive alternative for hands-on laboratories. The study was done in order to reveal pre-service science teachers’ preferences for hands-on or online laboratory environments. Participants of the study were 41 pre-service science teachers who were enrolled in a 13-week course on laboratory applications in science education. Findings showed that more than half of the pre-service science teachers would prefer to use hands-on laboratory environments for both conceptual teaching in their classrooms and to develop their students’ science process skills. The reasons behind their choices are discussed.