• Journal of the Korean earth science society
• /
• v.24 no.5
• /
• pp.393-401
• /
• 2003

The purpose of this study is to research the effect of using analogies in high school earth science classes. According to the usage of TWA model, three types of teaching strategies were developed: text developer-generated, teacher-generated, and student-generated analogies. The model described in this paper began with a task analysis of highschool science textbooks for grade 10 to identify how the textbook authors used analogies to explain plate tectonics concepts. In this study, 210 students were sampled from first graders of high school. After 7 classes, the consciousness of students was investigated with questionnaires. The results are as follows: 1. Many plate-tectonics analogies are used in high school science textbooks (total 25). Teachers and authors construct effective analogies to help students build on their relevant knowledge by applying it to new knowledge acquired from textbooks. 2. Analysis of the data indicate that instruction using student-generated analogies was more effective than others. But in the class in conveying complicated concepts (ex. transform fault), teacher-generated instruction was effective. Teachers need to be aware of the weakness of using analogies in order to select the most appropriate analogies. 3. Making analogies in general, as well as using analogies have systematic steps. Analogies should be used after considering student's preconception, teacher's consciousness and text author's intention to use analogies as powerful instructional tools.

• Journal of The Korean Association For Science Education
• /
• v.30 no.5
• /
• pp.668-680
• /
• 2010

In this study, we investigated the characteristics, the mapping understanding, the mapping errors, and the perceptions of student-generated analogies on the separation of mixtures using the sizes of particles by elementary school students' approaches to learning. Fourth graders (N=92) were selected and administered with the tests on the approaches to learning, self-generating analogies, and perception of self-generating analogies. The results revealed that the meaningful learners made more analogies, especially structural/functional, enriched, and higher systematic ones than the rote learners. However, there were little difference in students' approaches to learning in the subcategories of representation (verbal, pictorial, and verbal/pictorial), artificiality (artificial and everyday), and abstraction (abstract and concrete). The meaningful learners had deeper understanding of the analogy and fewer mapping errors than the rote learners. In addition, the numbers of the shared attributes included in student-generated analogies and the scores of the mapping understanding of the meaningful learners were significantly higher than those of the rote learners. Many students, regardless of students' approaches to learning, had positive perceptions of the self-generating analogies in various cognitive and motivational aspects. However, they also point out the various difficulties in the self-generating analogies as their disadvantages. Educational implications of these findings are discussed.

• Journal of Korean Elementary Science Education
• /
• v.28 no.3
• /
• pp.292-303
• /
• 2009

In this study, we investigated the characteristics of the analogies, the mapping understanding, and the mapping errors on saturated solution of scientifically-gifted and general elementary students. Fifth graders (n=60) at four scientifically-gifted education institutes in Seoul and/or Gyeonggi province and fifth graders (n=91) at three elementary schools in Seoul were selected and assigned to the scientifically-gifted group and the general group respectively. After the students of each group performed the experiment and were taught about the target concept in the first class, they administered the test on the self-generating analogies on the target concept in the second class. The results revealed that the students in the scientifically-gifted group made more analogies, especially verbal/pictorial, structural/functional, enriched, and higher systematic ones, and had deeper understanding of the analogy than those in the general group. The numbers of the shared attributes included in the student-generated analogies and the scores of the mapping understanding of the students in the scientifically-gifted group were significantly higher than those in the general group. The students in the scientifically-gifted group had fewer mapping errors than those in the general group. However, not a few students in the scientifically-gifted group had at least one mapping error. Educational implications of these findings are discussed.

• Journal of the Korean Chemical Society
• /
• v.64 no.2
• /
• pp.99-110
• /
• 2020

In this study, we investigated the characteristics of lessons using student-centered analogies by pre-service science teachers. Six pre-service science teachers at a college of education in Seoul participated in this study. They practiced lessons using student-centered analogies in teaching practices. We observed their planning lessons and the lessons. Also we interviewed them before and after their lessons. All the data collected were analyzed by using the constant comparative method. There were some cases where they did not clearly guide methods and rules of analogy activities when using physical analogy and role-playing analogy. Also, some of them invited students to predict the outcome of analogy activities. In lessons using role-playing analogy, they gave roles to only a few of students and had a trouble dealing with target concepts. In lessons using self-generated analogy, they had a hard time dealing with unexpected analogies that students generated and provided examples of analogies in order to help students to generate analogies. Educational implications of these findings are discussed.

• Journal of Korean Elementary Science Education
• /
• v.37 no.2
• /
• pp.161-172
• /
• 2018

This study investigated the changes in representation on analogies that elementary science-gifted students generated by using Algodoo program to explain the electric current. After the students were taught about the 'components in circuit and their function' and 'electric current' with teacher centered analogy and PhET program for 4 class hours, they generated analogies to the electric circuit. Then they compared the similarity between generated analogy and target concept and matched it to the target concept. The result revealed that the battery, light bulb, and electric wire were changed according to the change of representations on free electrons. And they generated more proper analogies reflected the target concept when represented the free electrons by the circular particles than the water. From these results, we can say that generating analogy using Algodoo program is the effective education activity to help students understand abstract concept by visualizing it more easily and simply.

• Journal of the Korean Chemical Society
• /
• v.47 no.3
• /
• pp.265-272
• /
• 2003

This study investigated the types of analogies that 7th graders generated to explain three states of matter, the difference of analogies by achievement level, and the misconceptions that might be induced from the analogies. The results revealed that many students made the enriched and storytelling analogies with concrete materials or events from their everyday experiences. However, they made analogies without considering causal relationship such as the change of particular arrangement based on latent heat or molecular movement. The students of high achievement level considered the arrangement and the movement of molecules and made the enriched and storytelling analogies more than the students of low achievement level. The students made the analogies that might induce misconceptions such that the molecules don't move in solid state or the particles could be changed according to the states.

• Journal of The Korean Association For Science Education
• /
• v.28 no.5
• /
• pp.424-437
• /
• 2008

In this study, we collected teachers' opinions with regard to the effects of the instruction using analogy generation, the disadvantages of the instruction, the problem-solving methods of the instruction, and the teacher's role in it, and accordingly tried to investigate its effectiveness with the analysis of students' academic achievements and motivation, and through the student's interview, after applying the activities of creating generated analogies, finding the difference between the objects and comparisons, and presenting new-known genetics concepts as the students themselves generated analogies. As a result of a teachers' workshop on instruction using analogy development, it was expected to have a positive effect on students' understanding of scientific concepts in genetics, which were found to be difficult for students to understand in learning biology. Students found analogy examples for concepts in genetics in daily life, compared their analogs to those of peers, and examined inconsistencies between targets and analogs through the process of discussion, which finally led to their correct perception of scientific concepts in genetics. In addition, instruction using student-generated analogies proved to have a more positive effect on improving academic achievement and motivating learning, compared with traditional expository instruction.

• Journal of The Korean Association For Science Education
• /
• v.29 no.8
• /
• pp.861-873
• /
• 2009

This study investigated the types of analogies generated by science-gifted students, mapping errors on the chromatography, and the perceptions on generating analogy. The subjects were science-gifted eighth-graders (N=68) enrolled at four gifted-education centers in Seoul. Analyses of the results revealed that most science-gifted students represented the analogies using verbal and pictorial forms based on concrete and everyday experiences, and they elaborately explained them including the functional attributes and the causal relationships of the target concept. Science-gifted students selected the analogies having rich similarities or similar structure and principle between the target concept and the analogy as the best of the self-generated analogies. And they used mainly their 'school life' as analogy materials. The results of the mapping test showed that many science-gifted students had mapping errors such as 'failure to map' and 'overmapping'. They were found to have the positive perceptions on generating analogy. The present study will provide the basic information to develop an instructional model in generating analogy in an education program for science-gifted students.

• Journal of The Korean Association For Science Education
• /
• v.38 no.3
• /
• pp.369-378
• /
• 2018

In this study, we investigated the characteristics in the processes of generating analogy for lessons by pre-service science teachers. Eight pre-service teachers at a college of education in Seoul participated in this study. After the workshop of analogy in science education, they generated analogies for lessons. In order to investigate thought processes deeply, we used the think-aloud method and also conducted semi-structured interviews after their activities. Worksheets written by the pre-service teachers were collected. Their activities and interviews were recorded and videotaped. The characteristics in the processes of generating analogy were analyzed in the perspectives of student, analog, and concept. The analyses of the results revealed that they generated analogies to correct students' misconceptions and also considered misconceptions that could be caused by their analogies. They generated analogies using sources with which students are familiar. They also generated concrete and everyday analogies rather than abstract and artificial analogies. There were some cases where they did not clearly grasp the target concepts and expressed the concepts which were not covered in the unit. On the bases of the results, we suggest some educational implications for pre-service science teacher education.

• Journal of Korean Elementary Science Education
• /
• v.34 no.4
• /
• pp.419-433
• /
• 2015

Analogical reasoning is a central component of human cognition and contributes to scientific discovery and to develop science education. In this study, we investigated the process features of lower elementary school students' analogical reasoning to explain mixture concept. The subjects are 24 lower elementary students. And the research design includes three phases instruction to investigate the features of students' self generated analogy. Phase 1 is the introduction of analogy in which student learn to use analogy. Phase 2 is a POE class about mixture conception. Piaget and Inhelder studied the conception of mixing among children in relation to cognitive development. In phase 2, we taught the student with Piaget and Inhelder's the experiment and observed the features of learning process about mixture conception. Phase 3 is students' generation of analogy (self generated analogy) for the experienced phenomena in phase 2. We analyzed the students' responses through the three phases in the view of Gentner's Structure Mapping Theory. The results showed that many lower elementary school students even before formal operation stage understood the mixture conception and made well their self generated analogy to explain the mixture conception in spite of the difficulty of making self generated analogy.