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This study aimed to expand PDEODE*E Tasks with the Think-Pair-Share model for reconstructing students' misconceptions on work and energy. The PDEODE*E Tasks with Think-Pair-Share model implemented for students who had not taught the concept of work and energy. The participants include 36 students of tenth grade (22 girls and 14 boys, whose ages ranged from 15 to 16 years) at a senior high school in Bandung, Indonesia. Students' misconceptions evaluated by administering an Energy and Momentum Conceptual Survey (EMCS) comprised of 18 items in the form of four-tier, as pre-and post-test. Furthermore, students' thoughts also elicited using worksheets of seven PDEODE*E tasks. A qualitative approach is used to analyze the test and worksheets. The data analysis had mostly focused on work and energy concepts such as work, energy, and conservation of energy. The findings suggested that PDEODE*E Tasks with Think-Pair-Share model improved students' conceptual understanding and reduced most of their misconceptions despite a little misconception motionless occurred. Teachers can use PDEODE*E tasks with the Think-Pair-Share model to reconstruct students' misconceptions.

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The aim of this study was to enhance K-10 students’ conceptions through Computer Simulations-Aided PDEODE*E (CS-PDEODE*E) on Newton’s Laws. The PDEODE*E is a worksheet consisting of seven stages, which are Predict (P), Discuss (D), Explain (E), Observe (O), Discuss (D), Explore (E*) and Explain (E). The computer simulations could support learning via PDEODE*E worksheet by presenting physics’ phenomena. The Newton’s Laws focused on forces and Newton’s First Law. The research method used the 4D (Define, Design, Develop and Disseminate). The research sample included 30 K-10 students (15 boys and 15 girls, with the average age of 16 years-old). The students’ conceptions were identified through a Four-Tier Newtonian Test (FTNT) as pre- and post-test. In the developing phase, we acquired the product of computer simulations and PDEODE*E worksheet. In the disseminating phase, the value of effect size was 0.85 in the "large effect" of classification and tcount>ttable, thus, CS-PDEODE*E was more effective than CS-POE. The decisions succumbed that the students’ conceptions could be enhanced via PDEODE*E based computer simulations.

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The identification of students' mental models is crucial in understanding their knowledge of scientific concepts. This research aimed to develop a Mental Models Representation Instrument on Newton's Laws (MeMoRI-NL). The ADDIE (Analyzing, Designing, Developing, Implementing and Evaluating) model was used as a research method. The sample consisted of 30 students of 15-16 years-old at one of senior high school in Tatar Pasundan. The data was examined using Rasch analysis on validity, reliability, level of difficulty, and distributions of students' mental models. Students' mental models were classified as Scientific (SC), Synthetic (SY), Synthetic almost Misconception (SYM), and Initial (IN) model. Based on the evaluating stage, students' mental models are mostly in the SYM and IN model. Consequently, it can be concluded that the Mental Models Representation Instrument on Newton's Laws (MeMoRI-NL) can be developed using the ADDIE model and most of the students' mental model has not been following scientific knowledge. Based on this research, teachers or educators should enhance students' mental models, especially for female students.