Özet:

Regular lecture-based teaching approaches sometimes fail to enhance students’ understanding of some practice-based chemistry topics such as Nuclear Magnetic Resonance (NMR) spectroscopy. A new task-based approach called the T5 learning model was introduced for 48 students studying NMR in the Spectroscopic Methods for Chemical Identification course in 2011. Four different NMR learning environments based on T5 learning models were developed. The students were requested to participate in the following online processes in each environment: 1) complete an individual task, 2) provide feedback and evaluate three anonymous peer tasks, 3) adjust their individual task and evaluate peer feedback, 4) complete a team task and evaluate the effort of each group member, and 5) get feedback from instructor to fulfill understanding. The result showed that the students obtained post-achievement NMR score (mean 24.25, SD 4.80) statistically significantly higher than pre-achievement score (mean 12.29, SD 1.69) at p-value of 0.05. In addition, the implementation of T5-D4LP NMR course in each year during 2010-2012 showed that the students achieved high score (about 70%) in the NMR topics. The student evaluation of the T5 NMR learning environments revealed that they agreed that peer feedback with instructor facilitation engaged them in deep learning and effectively promoted their conceptual understanding.

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