Modelling and Assessing Experimental Competencies in Physics
Contributions from science education research · 2013
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The effect of concept mapping on students' anxiety and achievement in biology
Abstract The results of recent studies into the use of the concept mapping heuristic seem to demonstrate that meaningful learning results through its use in science classrooms. While this underscores the need to use more effective instructional strategies in science teaching, the issue of the intervening variable of anxiety in learning and science achievement, and the possible use of a metacognitive strategy in anxiety reduction have not been addressed. This study, therefore, sought to find out if the metacognitive strategy of concept mapping reduces anxiety and thereby enhances achievement in biology. A total of 51 (30 boys, 21 girls) senior secondary one (grade 10) students participated in this experiment. Two instruments—the Zuckerman Affect Adjective Checklist and the Biology Achievement Test—were used in pre‐ and posttest administrations to measure the treatment effect on anxiety and achievement, respectively. Findings support the stand that concept mapping is significantly more effective than the traditional/expository teaching strategy in enhancing learning in biology. In addition, it apparently reduces students' anxiety towards the learning of biology. A significant reduction of anxiety was noticed for male subjects.
Relationship between STS approach, scientific literacy, and achievement in biology
Abstract This study set out to investigate the relationship between STS approach, scientific literacy (SL), and achievement in biology. A quasi‐experimental design of the nonequivalent group was employed. Four secondary schools, eight teachers, and 246 students from Nigeria were involved in the study. Two classes were randomly selected from each school and assigned to either the experimental or control group. Two instruments were used to collect data: an Achievement Test on Reproduction and Family Planning and a SL Scale. Results showed that there is no relationship between SL and achievement in biology. The split‐wise posttest regression showed a weak positive relationship between SL and achievement in biology for the experimental group and a no relationship for the control group. However, STS approach mediated between SL and achievement to effect a slightly stronger significant positive relationship. The slope of SL was greater when we controlled for instruction showing that the relationship between SL and achievement is not spurious when instruction is taken into account. We therefore conclude that STS approach might be affecting other variables in the science classroom that in turn affect achievement in the sciences. © 2002 Wiley Periodicals, Inc. Sci Ed 87: 31–39, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/sce.10012
TIMSS 2011 Science Assessment Results: A Review of Ghana’s Performance
This paper reviews Ghana’s performance in the TIMSS 2011 survey in comparison with other African and some highperforming countries which participated in the TIMSS assessment. Students’ achievement in the science contentareas assessed were summarized and teacher preparation constructs of teachers of the students who took part in theassessment explored with the aim of finding any possible linkage between teacher preparation and studentsachievement. Two set of reviews were done. First, results on the eighth grade (JHS 2) science content achievement inbiology, chemistry, physics, and earth science for Ghana, Morocco and Tunisia were compared. The second reviewcompared how Ghana prepares her teachers to Finland and Singapore who were among the first five performingcountries on the TIMSS 2011 assessment. Some mismatch was identified in terms of teacher preparation andstudents’ achievement in the case of Ghana. Ghanaian teachers scored relatively high on most of the constructs thatwere measured by the TIMSS report under teacher preparation but these were not reflected in the students’achievement. In view of this, it is recommended that other indicators such as classroom instruction, resources forteaching science, and school climate are investigated with the aim of finding any other underlying factors that couldaccount for the mismatch between Ghanaian students’ achievement on the TIMSS science assessment and teachers’preparation.