The influences of sequenced instructional strategy and locus of control on preservice elementary teachers' understanding of the nature of science

The intent of this study was to investigate the influence of both locus of control as well as three instructional strategies, which differed in their respective emphases on science content, teaching methods, and process science, to foster an understanding of the nature of science. Data were collected from 135 elementary preservice teachers enrolled in science teaching methods courses at the endpoint of three sequences: (a) introductory process instruction with three subsequent semesters of integrated science content and teaching methods, (b) process instruction with separate subsequent content and teaching methods, and (c) only science content with subsequent teaching methods. Statistical procedures included ANOVA, regression, and correlation. Results revealed that the nature of science was most predictable for a separate process/content/teaching methods strategy. Major conclusions were (1) logical thinking ability was the most influential predictor of understanding the nature of science and (2) separate rather than integrated experiences in content and teaching methods were superior in developing an understanding of the nature of science. Implications for preservice elementary teacher preparation are discussed.     

Studies on attitude toward teaching science and anxiety about teaching science in preservice elementary teachers

These studies examined attitude toward teaching science (ATTS) using an adaptation of the Bratt Attitude Test (M-BAT); anxiety about teaching science (ANX-TS), as measured by the State-Trait Anxiety Inventory (STAI A-State); and selected demographic variables in preservice elementary teachers for the 1977–1978 and 1978–1979 academic years and a follow-up of those students who completed their student teaching in May 1979. The M-BAT and STAI were administered in September at the beginning of Science 6 (earth science and biology course), in December on the next to last day of Science 6, in May on the next to the last day of Science 5 (physical science), and in May 1979 after student teaching. In the two academic years, both ATTS and ANX-TS became more positive during the sequence Science 6-5. Both changes in ATTS and ANX-TS continued to change in a positive direction after completion of Science 6-5, after student teaching. There were differences in the times that the greatest changes in ATTS and ANX-TS occurred. In both studies, the greatest change in ATTS took place between September and December, during Science 6. The greatest change in ANX-TS, however, took place during Science 5 between December and May in the 1977–1978 study. In the 1978–1979 study, the greatest changes in ANX-TS occurred in Science 6, between September and December. The delayed reduction of ANX-TS in the 1977–1978 study may be explained by differences in teaching patterns. In 1977–1978, two teachers taught only their academic specialty, biology or earth science, to students who switched teachers midsemester. In 1978–1979, the same two instructors taught both biology and earth science to the same students. Correlation coefficients for successive and corresponding administrations of both the M-BAT and STAI suggest these variables are related. Students with more positive ATTS tended to have reduced ANX-TS. Neither the number of high school or college science and math courses completed nor the level of enjoyment of these courses appears to be related to ATTS or ANX-TS for the initial administration of the M-BAT and STAI. Closer examination of data, however, indicates that students with negative ATTS and high ANX-TS were fairly evenly divided in their enjoyment of mathematics, while students with positive ATTS and low ANX-TS enjoyed math in a 3:1 like/dislike ratio. The relationship between both ATTS and ANX-TS and achievement is reasonalbly consistent for Science 6. In Science 5, however, the relationship between ATTS and achievement is inconsistent and there is no indication of a relationship between achievement and ANX-TS.     

Relationship between science knowledge levels and beliefs toward science instruction held by preservice elementary teachers

Aspects of science background knowledge and attitudes toward teaching science were examined among preservice elementary teachers. The results indicated a low level of science knowledge, a negative relationship between science knowledge and attitude toward teaching science, and a marked lack of confidence toward teaching science among the prospective teachers. Some interesting paradoxes were also found. Recommendations concerning preservice preparation, inclusion of academic science coursework, and collaborative efforts between college departments are offered.     

Intersections of life histories and science identities: the stories of three preservice elementary teachers

Grounded within Connelly and Clandinin’s conceptualization of teachers’ professional identity in terms of ‘stories to live by’ and through a life-history lens, this multiple case study aimed to respond to the following questions: (a) How do three preservice elementary teachers view themselves as future science teachers? (b) How have the participants’ life histories shaped their science identity trajectories? In order to characterize the participants’ formation of science identities over time, various data regarding their life histories in relation to science were collected: science biographies, self-portraits, interviews, reflective journals, lesson plans, and classroom observations. The analysis of the data illustrated how the three participants’ identities have been in formation from the early years of their lives and how various events, experiences, and interactions had shaped their identities through time and across contexts. These findings are discussed alongside implications for theory, specifically, identity and life-history intersections, for teacher preparation, and for research related to explorations of beginning elementary teachers’ identity trajectories.     

Effect of instructional procedure and pupil locus of control on achievement and attitudes

The purpose of this study is to determine the effect of instructional procedures differing in degree of student control on achievement and attitudes of pupils identified as having an internal or external locus of control. Two sixth-grade classes (N=47) were divided into internal and external locus of control groups. Half of the internals and externals in each class were randomly assigned a structured instructional procedure and half assigned a contract procedure. A two-week unit on nutrition was taught to all students, using a structured or contract method. There were no significant differences in achievement among any of the groups. However, the internal-contract group seemed to show a more positive attitude toward the unit than did the other three groups. These results suggest that instructional procedure may not differentially affect achievement of internal and external sixth graders over a short period, but that attitudes toward instruction may be affected.     

The effect of videotape and written channels of communication on the science attitudes of preservice elementary teachers

The purpose of this study was to assess the effect of two channels of communication on attitude change in preservice elementary teachers toward the teaching of science. A science attitude scale was administered as a pretest, posttest, and retention test to 66 preservice elementary school teachers. One analysis of variance for repeated measures was conducted. It was found that videotape and written channels of communication were equally effective in science attitude change.     

The effects of computer-assisted instruction and locus of control upon preservice elementary teachers' acquisition of the integrated science process skills

The purpose of this study was to determine the effects of computer-assisted instruction (CAI) versus a text mode of programmed instruction (PI), and the cognitive style of locus of control, on preservice elementary teachers' achievement of the integrated science process skills. Eighty-one preservice elementary teachers in six sections of a science methods class were classified as internally or externally controlled. The sections were randomly assigned to receive instruction in the integrated science process skills via a microcomputer or printed text. The study used a pretest-posttest control group design. Before assessing main and interaction effects, analysis of covariance was used to adjust posttest scores using the pretest scores. Statistical analysis revealed that main effects were not significant. Additionally, no interaction effects between treatments and loci of control were demonstrated. The results suggest that printed PI and tutorial CAI are equally effective modes of instruction for teaching internally and externally oriented preservice elementary teachers the integrated science process skills.     

Changes in a preservice elementary teachers physics course

Conclusion Preservice elementary teachers demonstrated the ability to read and interpret distance-time graphs before instruction. Posttest results suggested the new motion curriculum materials greatly improved students’ abilities to read and interpret velocity-time graphs. Despite conducting only one activity with acceleration, students also showed improvement with acceleration-time graphs. The instruction, which included MBL activities, improved the preservice teachers’ general conceptual understanding of these kinematic topics. Future research might include a means to better measure the cause for the conceptual change. Multiple factors played a role, including positive student attitudes toward using the computers, ability to make abstract concepts measurable and describable, and opportunities for frequent experimentation. The capabilities of MBLs changed the focus of the motion curriculum. An MBL’s capacity to quickly gather data and display it opens the door for a rich variety of activities. Developing new motion curriculum was enhanced with opportunities for experimentation and exploration made possible by this technology. The revision of the curriculum was rewarding and exciting for both the instructors and students. The students learned the content, saw an appropriate use of technology, and enjoyed using the computer. The instructors enjoyed exploring the topics using MBLs and became excited with the possibilities of further usage of MBLs. Using MBLs as the powerful tool they are, motion curriculum will continue to be revised, and the instructors will explore more effective ways of structuring the lessons with ways to better teach. This material is based upon work supported in part by a grant from the National Science Foundation (Grant No. TPE-9050039). Any opinions, findings, conclusions, and/or recommendations expressed in this article are those of the authors and do not necessarily reflect those of the National Science Foundation.     

A longitudinal investigation of the science teaching efficacy beliefs and science experiences of a cohort of preservice elementary teachers

ABSTRACT

This paper assesses the relationship between participation in two tertiary science courses and the science teaching efficacy beliefs (STEBs) of one cohort of preservice elementary teachers over a four-year period. Two Type II case studies were conducted within the courses. Data were collected through 26 administrations of the Science Teaching Efficacy Belief Instrument-B and semi structured interviews. Results showed that participation in the subjects covaried with increases in the participants’ STEBs. These increases in STEBs remained durable for two years. Implications for these findings are discussed within the paper.     

An instructional intervention's impact on the science and literacy achievement of culturally and linguistically diverse elementary students

This research examined the impact of the first‐year implementation of an instructional intervention to promote achievement and equity in science and literacy for culturally and linguistically diverse elementary students. The research addressed three areas: (a) overall science and literacy achievement, (b) achievement gaps among demographic subgroups, and (c) comparison with national (NAEP) and international (TIMSS) samples of students. The research involved 1,523 third‐ and fourth‐grade students at six elementary schools in a large urban school district. Significance tests of mean scores between pre‐ and posttests indicate statistically significant increases on all measures of science and literacy at both grade levels. While achievement gaps widened with third graders on some of the measures, the gaps tended to narrow with fourth graders. The results based on item‐by‐item comparisons with NAEP TIMSS samples of students indicated overall positive performance of the students in the research at the end of the school year. © 2005 Wiley Periodicals, Inc. J Res Sci Teach 42: 857–887, 2005     

Investigation of preservice elementary teachers' thinking about science

It is not uncommon to find media reports on the failures of science education, nor uncommon to hear prestigious scientists publicly lament the rise of antiscience attitudes. Given the position elementary teachers have in influencing children, antiscience sentiment among them would be a significant concern. Hence, this article reports on an investigation in which preservice elementary teachers responded to the Thinking about Science survey instrument. This newly developed instrument addresses the broadrelationship of science to nine important areas of society and culture and is intended to reveal the extent of views being consistent with or disagreeing with a commonly held worldview of science portrayed in the media and in popular science and science education literature. Results indicate that elementary teachers discriminate with respect to different aspects of culture and science but they are not antiscience. © 2002 Wiley Periodicals, Inc. J Res Sci Teach 39: 1016–1031, 2002