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Esra Özay, İjlal Ocak, Gürbüz Ocak
ÖZET: he purpose of this paper was to determine the effects of usage of sequential teaching method on the academic achievement and retention level of students. Three student groups, each of which included 20 biology students in Ataturk University-Erzurum, were offered a topic on general characteristics of enzymes with different sequences of 3 teaching methods. The teaching methods were Laboratory method (student experiment), slide demonstration and lecture method. The first group started to course with experiments in the laboratory, then the relevant theory of enzyme was given lecture method, and then the slides was shown (Group I). The sequence of these three teaching methods used in the first group was changed in both second and third group as follow: The lecture methods, slide show and experiment in Group II, and slide show, experiment and lecture ethod in Group III, respectively. Lab method used in the study was focused on the topic of enzymic activity. a student experiment was designed for this reason, and including to examine its catalytic features, effective factors, and relation between substrate and enzymes. This experiment was carried out by students. Slide demonstration method included slides about enzyme structure and function. The slides were shown by teachers. Lecture method was performed by teachers as usual. Effectiveness of different sequential teaching methods was measured quantitatively by an achievement test. Achievement test contained 25 questions, testing the knowledge of facts as well as the ability to transfer the knowledge and problem solving ability. This test was used as pre-test before methods’ application, post-test after the methods’ application and retention test after 40 days from methods’ applied. Tests’ results were evaluated by using one way ANOVA test. According to tests’ results, academic achievements of student in Group I and Group III were higher than academic achievements of student in Group II. Student’s retention (remembrance) level in Group I was higher than that of Group II and Group III.
Key words: Slide demonstration, laboratory, lecture method, teaching methods, sequential teaching methods.
