Construction of a Precursor Model for the Concept of Rolling Friction in the Thought of Preschool Age Children: A Socio-cognitive Teaching Intervention (original) (raw)
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AIP Conference Proceedings, 2018
Students do not easily understand the concept of rolling friction. There are factors that influence the rolling friction such as condition of surface, kinds of material, and rolling friction coefficient. In rolling friction, there is no relative motion at the points of contact in a direction parallel to the surface. So, the rolling friction coefficient is usually very small. This research aim was to describe students' conceptual understanding of rolling friction coefficient on rolling object in the horizontal plane and incline. This research used survey method by using descriptive qualitative. The subjects are 24 students of 4 th-semester Physics Education at Universitas Sebelas Maret. The data collected from two-tier diagnostic test and interview. The result are 45.8% students can explain the factor that influences of rolling friction coefficient on rolling object in the incline, 37.5% students can understand the friction force on two different objects when rolling in the incline and only 20.8% of the students can understand the rolling friction coefficient on two different objects when rolling in the horizontal plane. Student's misconception are "the rolling friction coefficient is affected by the mass of objects" and "the friction force is affected by object area". The results can be used to determine pre-service teachers' conceptual understanding ability so as to help the next learning process..
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Rolling motion is one of the most difficult topics for students studying the dynamics of rigid bodies. Students have difficulty in solving problems related to the topic, which is normally related to misconceptions about the topic. The aim of this study was to use an experiment on rolling motion to potentially improve students’ understanding of the topic. The study employed a survey of 19 students enrolled on a year three course, Dynamics of Rigid Bodies, in the Faculty of Engineering at the University of Botswana, Gaborone, Botswana, in the academic year 2019-2020. The survey consisted of a questionnaire carried out before and after the experiment, related to students’ understanding of rolling motion, and an additional questionnaire related to students’ experience of the experiment. It was found that before the experiment, students had many difficulties in understanding, and in applying and interpreting fundamental concepts related to rolling motion. The results after the experiment...
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