On the Misconceptions in Friction by Junior High Students in Taiwan
2003
Hochschulschrift
Zugriff:
91
The purpose of the research is to discuss these misconceptions that junior high school students have when they are learning the concept of friction and the reason why the misconceptions exist. The research is to make the chemistry teachers of junior high schools understand that they could predicate what misconceptions their students have before they learn the concept of friction. Besides, I also contrast and compare the textbooks of junior high schools concerning the concept of friction cross straits, hoping that I could offer some good suggestions for the chemistry teachers and the textbook editors. The research objects are the three hundred twelve students of the eighth and ninth grade from the nine classes in Taipei City and Taipei County. The method of the research is to collect the research and information concerning the concept of friction from Taiwan and other countries. Secondly, I defined the questions that the research would discuss based on the concept map of friction. Thirdly, I used the exercise books which I edited as the measure and have the interview with the students to understand deeply the reason why the students’ the misconceptions about the concept of friction existed. Finally, I contrasted the editing of the textbooks concerning the introduction of the concept of friction to discuss the advantages and disadvantages of the textbooks cross straits. The following is the abstracts of the research result: The following is the misconceptions of the concept of friction which the students: 1.There is friction if there is contact. 2.There is friction if the object has weight. 3.There is no friction if the object does not move. 4.The reason why the object remains still influenced by the external force is the external force is smaller than friction force. 5.The weight is the friction force which the object has. 6.The more pressure is, the more friction force is. 7.The reason why the rougher contact area has more friction force is that the object can cause friction more easily. 8.The larger the contact area is, the more the friction force. 9.The smaller the contact area is, the less the friction force is. 10.The more the object motion speed is, the more friction force is. 11.The reason hwy the rolling friction and sliding friction are different is the change of the contact area. keywords: concept, misconception, interview, friction, textbook
Titel: |
On the Misconceptions in Friction by Junior High Students in Taiwan
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Autor/in / Beteiligte Person: | Tsai, Chun-Lai ; 蔡春來 |
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Veröffentlichung: | 2003 |
Medientyp: | Hochschulschrift |
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