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Abstract

Scientific reasoning skills help students to explain concepts and argumentations, which is it’s beneficial for student. This article aims to identification pattern of scientific reasoning student that used to solving problems in heat and temperature material. Type of research is descriptive quantitative with 97 students. Instrument is used 4 item essay test of scientific reasoning with reliability 0.726. the scientific reasoning analyze with the rubric that level and category from pattern of correlational reasoning, proportional reasoning, and probabilistic reasoning. Results of research shows that scientific of reasoning skills in correlational reasoning 44.3% students into category of NR (no relationship). Then, in proportional reasoning 24.7% students into category of AD (Additive). In the last, in probabilistic reasoning 62.8% students into category of AP (Approximate). So, the conclusion of the research is students still in low level of category of scientific reasoning skills.

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