Effects of two teaching methods on the achievement in and attitude to biology of students of different levels of scientific literacy
International Journal of Educational Research · 2006
Abstract
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A Survey of Biology Teachers Use of Activity-Oriented, Laboratory Practical Exercises to Promote Functional Biology Education
A major goal of science education is fostering students’ intellectual competencies such as independent learning, problem-solving, decision-making and critical thinking. This goal can only be achieved when students are actively involved in the teaching-learning process through activity-based, practical-oriented instructional methods involving the use of laboratories. This study therefore, investigated the extent to which the biology teachers employ activity-oriented, laboratory/practical instructional methods in order to improve the learning outcome of their students. The descriptive survey involved 73 Biology teachers randomly selected from all the six education zones of Anambra state, Nigeria. Four research questions were posed and four hypotheses were formulated to guide the conduct of the study. A 32-item structured questionnaire which has reliability co-efficient of 0.82 was used to collect data. Data were analyzed using mean, standard deviation and t-tests. Results show that Biology teachers adopt practical-oriented strategies in teaching biology, conduct practical activities to a high extent, and perceive practical exercises as essential to effective teaching and learning of the subject. Provision of adequate number of laboratory materials, employment of adequate number of biology teachers, making provision for well designed laboratory activities in the curriculum and training of teachers on how to effectively combine theory with practical are some of the strategies that will encourage biology teachers to conduct practical lessons. There was no significant difference between male and female biology teachers in their responses to the different aspects investigated. Based on these findings, some recommendations were made that include that curriculum designers should incorporate guides for practical activities that go with each topic in the curriculum so as to encourage the teachers to teach theory with practical as a unified whole to increase students’ understanding and internalization of the facts and ideas taught.
Effect of Practical Work on Physics Learning Effectiveness: A Case of a Senior High School in Ghana
This study investigated the effect of practical work on students’ academic achievement, acquisition of scientific process, skills and attitudes towards the study of selected topics in electricity. Fifty (50) Form Two Physics students from a Senior High Technical School in the Kwaebibirem Municipal of the Eastern Region of Ghana participated in the study. Instruments used to collect data included a student learning evaluation form, questionnaire and pre-and-post-intervention tests. Data was analysed using descriptive statistics and Microsoft Excel 2010 Computer Software. The findings indicated that the students’ academic performance were enhanced, they acquired important scientific process skills needed for science practical work and developed positive attitudes towards science practical work. The study recommended that Physics teachers should adopt practical work as a teaching technique and as well be encouraged to teach concepts alongside with practical activities.
Integration of Practical Work into Teaching and Learning of Physics at the Senior High School Level
Practical work forms an integral part of teaching and learning as enshrined in the teaching physics syllabus designed for senior high schools in Ghana. This presupposes that the final grade of students is influenced by their performance in physics practical work. Hence, practical work in physics needs to be utilised to improve students’ performance. This study, therefore, sought to examine how practical work is integrated into the teaching and learning of physics at the senior high school level in the Volta Region of Ghana. In all, 16 physics teachers and 212 science students randomly sampled took part in the study. It was found that though teachers accept practical work as an essential ingredient for students’ understanding of concepts, they are not up-to-date on how practical work should be integrated into the teaching and learning of physics as prescribed by the syllabus for physics. Also, the teaching of practical work is done via group work, hands-on activity, interactive demonstrations, discussion and lecture. It is recommended that teachers should adopt integrating practical work into lessons instead of separating them from theory.
