融入基本物質概念的生物課程對國中學生學習的影響

Abstract

本研究旨在探討在國中生物上冊第三章第三節「植物如何獲得養分」單元中，融入基本物質概念對學生學習「植物的養分以及能量」相關概念的影響。研究採準實驗研究法，研究對象為新北市某國中七年級學生四個班級，合計115人。依研究設計分為接受融入基本物質觀點的課程組(n=58)、傳統課程組(n=57)。診斷學習成效的研究工具為依據Bloom的認知層次研發的「植物的養分以及能量成就測驗」，以單因子共變數以及重複量數變異數分析，評估學生之學習成效。；此外輔以半結構晤談，了解學生對於「植物的養分以及能量概念」的理解程度。研究結果顯示：融入課程組在接受融合課程後，整體對於「植物的養分以及能量」相關概念的表現較傳統課程組為佳，後測以及延宕測皆有顯著差異；在「光合作用」概念的理解情況也優於傳統課程組。依據本研究結果，學生在學習植物如何獲得養分的單元之前，先建立對基本物質的認識，有助於其內化光合作用相關概念，習得正確的科學性概念。因此建議生物教師在教授光合作用單元中可以先建立學生對基本物質的認識，促進有意義的學習，提升學習成效。This study aimed to explore the effects of the “curriculum integrated with the concepts of basic material” to the junior high school students’ learning on the learning unit “How plants obtain nutrients”. This study applied quasi-experimental design. The participants were 115 7thgraders from four classes at a middle school in New Taipei City. The four classes were randomly assigned to two groups-integrating basic material group (experimental group)and traditional curriculum group(control group). An achievement test based on Bloom cognitive taxonomy was developed to detect students’ understanding about “How plants obtain nutrients”. Statistic analysis ANCOVA and Repeated measures ANOVA were conducted to analyze the quantitative data. Also supplemented by semi-structured interviews to understand the students’ understanding of "plant nutrients and the energy concept ".The results showed that experimental group received the course, overall for "plant nutrients and energy" performance related concepts better than the control group, post-test and delayed test individually significant difference. In the "photosynthesis" conceptual understanding the situation was better than the control group. According to the results of this study, after establishing the understanding of the basic substance, students could internalize photosynthesis related concepts and acquire the correct scientific concepts in the plants nutrition unit. Therefore we recommend that biology teachers in teaching photosynthesis learning units can first build student understanding on the basic substance, and promote meaningful learning, enhance learning effectiveness.