科学教育研究
Online ISSN : 2188-5338
Print ISSN : 0386-4553
ISSN-L : 0386-4553
26 巻, 4 号
選択された号の論文の9件中1~9を表示しています
  • 赤堀 保司
    原稿種別: 巻頭言
    2002 年 26 巻 4 号 p. 255-256
    発行日: 2002/12/10
    公開日: 2017/06/30
    ジャーナル フリー
  • 柚木 朋也
    原稿種別: 研究論文
    2002 年 26 巻 4 号 p. 257-263
    発行日: 2002/12/10
    公開日: 2017/06/30
    ジャーナル フリー
    The purpose of this study is to develop teaching materials to enable students to learn more easily about the transformation of energy. Materials of this kind have been devised by many teachers. Here we have developed a fuel cell which can be experimented with more safely and effectively. The fuel cell made with a floppy disk case (FDC) has the following characteristics: (1) It can create a safe and simple experiment. (2) FDC is cost-effective, so that each student can participate in the experiment. (3) By the use of a polypropylene net, it is possible to more effectively take out the current. (4) It can electrolyze water. (5) As in the electrolysis of water, sodium hydroxide solution is used. (6) The same kind of metal is used for two electrodes. (7) FDC generates electricity when it is supplied with gaseous hydrogen and oxygen from outside. (8) Consumption of gas can be confirmed because of the generation of electricity, (9) It is possible to experiment quantitatively.
  • 谷田 親彦, 上田 邦夫
    原稿種別: 研究論文
    2002 年 26 巻 4 号 p. 264-270
    発行日: 2002/12/10
    公開日: 2017/06/30
    ジャーナル フリー
    The purpose of this research is to examine the relationship between students' perception of interest, difficulty and evaluation of the manufacturing scene, and to indicate effective methods of instruction in technology classes. We investigated students' perception of each stage of manufacturing, and surveyed their consciousness on completion. We analyzed the mutual relation between each based on the data. As a result, it was proved that students thought hard about accuracy of the product, careful and premeditated manufacture, but thought less about the material and parts of production; that the students' consciousness of difficulty has negative relations with interest and evaluation; that their consciousness of interest was correlated with evaluation: that in each manufacturing stage there was an important thinking factor that greatly influenced their consciousness, and it made the relation of their each stage's consciousness stabilized; it is supposed that the students had a high expectation of finished products, and an interest in exact manufacturing at the assembly stage.
  • 布施 光代
    原稿種別: 研究論文
    2002 年 26 巻 4 号 p. 271-279
    発行日: 2002/12/10
    公開日: 2017/06/30
    ジャーナル フリー
    This study examined the development of the concept of animals in childhood under the following experiments. In experiment 1 subjects were told to choose animal cards from twelve picture cards showing animals, plants, or inanimate objects. The results showed that first graders of elementary school did not have a clear concept of animals, while third and fifth graders have formed a clearer concept of animals. However, the third and fifth graders did not include humans in the concept of animals. It was also suggested that even adults still maintain naive concepts of animals that exclude worms and bees. Experiment 2 examined the development of the concept of animals based on the content of the explanations and examples of animals that children offered. The results showed that children tended to think that only mammal-like creatures were animals.
  • 石川 聡子, 盛岡 通
    原稿種別: 研究論文
    2002 年 26 巻 4 号 p. 280-291
    発行日: 2002/12/10
    公開日: 2017/06/30
    ジャーナル フリー
    The dioxin issues at Nose in Osaka have been conferred on at the round-table conference whose participants include administrators, academics and citizens, following the success of pollution mediation in July 2000. This article presents that the characteristics of interested parties, democratic decision making and the socioscientific epistemology are identified as the principles by which lay persons' risk communications are supported. By the case study of Nose, the features of the risk communications scenes were clarified according to the adjustment of 8 topics by Kolsto (2001). Two new topics were supplemented to the 8 topics by Kolsto (2001). In addition, as the basis of the development of The support guide of the socioscientific epistemology for lay persons' the framework of this guide was constructed. The 5 concepts are 'science as social process', 'science as one of the social domains', 'the interpretations of values of scientific statements', 'the relationships between experts and lay persons'and 'science applied to decision makings'.
  • 小池 守, 高津戸 秀, 山下 伸典, 林 康久
    原稿種別: 研究論文
    2002 年 26 巻 4 号 p. 292-299
    発行日: 2002/12/10
    公開日: 2017/06/30
    ジャーナル フリー
    The object of this study is to develp teaching materials for oxidaiton-reduction and to suggest a unit program for oxidation-reduction reation. Several voltaic cells connected with crystal carphones were made by the immersion of copper wire and six mctal pates (Mg, Al, Zn, Fe, Ni, Cu) into a 0.001 M sulfuric acid solution. When the copper wire and each metal electrode made contact in the solution, a sound with ca. 3100 Hz was generated. Each metal could not be arranged in the order of ionization tendency by :he sound volume. When aluminum plate was amalgamated and other metal plates except magnesium were plated with each salt, these different kinds of meatals could be distinguished and the order ranged from intense to weak sound volume, is consistent with the order of ionization tendency. The metal order obtained from the sound volume is also in agreement with that from the reactivity of each metal in a 0.5 M sulfuric acid solution. The usefulness of the experiment developed in this study was examined in a high scool, about 70% students could put these metals in the order of the ease of oxidation based on the sound volumue using the earphones. A unit program using the experiment to distinguish metals by sound as an introduction to teaching oxdation-reduction reaction is proposed and the relation of oxidation-reduction with other scientifec subiects in school and daily life is also discussed.
  • 植松 公威
    原稿種別: 研究論文
    2002 年 26 巻 4 号 p. 300-308
    発行日: 2002/12/10
    公開日: 2017/06/30
    ジャーナル フリー
    This study examined an effective instructional rule to correct learners' misconceptions that limit their application of a scientific concept to well-known examples. The learners were high school students taking a science course. They were asked to read a science text that described either of two different kinds of rules to help them learn a scientific concept. One of the rules was characterized by the process of demarcation:showing the 'domain of explanation' of each concept (learners' prior knowledge used in rationalizing their misconceptions, and the scientific concept), or showing the learners that their prior knowledge was not wrong but limited. The other rule was a general type , that simply referred to the scientific concept that conflicted with their prior knowledge. Major results were as follows: 1) The former rule was more effective in restraining learners from allowing their prior knowledge to influence rationalization of their misconceptions, and at extending their application of the scientific concept 2) The latter rule was more likely to make the learners use their prior knowledge to rationalize their misconceptions.
  • 鎌田 正裕, 佐藤 時子
    原稿種別: 実践論文
    2002 年 26 巻 4 号 p. 309-314
    発行日: 2002/12/10
    公開日: 2017/06/30
    ジャーナル フリー
    lt is not easy a)r many tcachrrs to toarh about natural convection of water to fourth grade pupils in science. This is not simply because the phenomena are not common for children in their daily lives but also because the mechanism of natural convection is rather comnlicated and has been often misunderstood by teachers. It should be also noted that the technique to observe flows and temperature distribution in a vessel is limited. In I his paper, the authors will present. 1) what kind ofmisunderstanding exists rcgarding this phenomena and how it should bc corrected, 2) visualization techniques for water now using styrcne resin oowder. and 3) visualization techniques for tvmpprature distribution of water using liquid crystal microcapsules.
  • 里 嘉千茂, 中村 百里, 村上 潤
    原稿種別: 資料
    2002 年 26 巻 4 号 p. 315-323
    発行日: 2002/12/10
    公開日: 2017/06/30
    ジャーナル フリー
    When pupils learn about earthquakes, they seem to have some difficulty in understanding the concepts because of the insufficiency of adequate teaching tools in most schools. Therefore, we tried to make three physical models which might be useful in visually understanding the following subjects: (1) the three-dimensional plate structure around Japan and its connection with earthquakes. (2) the mechanism of interplate earthquakes between subducting oceanic and continental plates, and (3) the three-dimensional distribution of earthquakes in and around Japan. We named them (1) "Why Do Earthquakes Occur?". (2) "The True Character of Earthquakes" and (3) "Where Do Earthquakes Occur?". Subsequently, using these handmade physical models, we conducted a practical science classin a junior high school. During the class, we found that each of the models succeeded in attracting the interest of the pupils. However, the effectiveness of the models as leaching tools has not yet been sufficiently investigated. More investigation is necessary to draw a definite conclusion on the effectiveness of the models.
feedback
Top