• 제목/요약/키워드: attitude of learning mathematics

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제 1, 2회 학생 과학 공동탐구 토론대회의 종합적 평가 (Summative Evaluation of 1993, 1994 Discussion Contest of Scientific Investigation)

  • 김은숙;윤혜경
    • 한국과학교육학회지
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    • 제16권4호
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    • pp.376-388
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    • 1996
  • The first and the second "Discussion Contest of Scientific Investigation" was evaluated in this study. This contest was a part of 'Korean Youth Science Festival' held in 1993 and 1994. The evaluation was based on the data collected from the middle school students of final teams, their teachers, a large number of middle school students and college students who were audience of the final competition. Questionnaires, interviews, reports of final teams, and video tape of final competition were used to collect data. The study focussed on three research questions. The first was about the preparation and the research process of students of final teams. The second was about the format and the proceeding of the Contest. The third was whether participating the Contest was useful experience for the students and the teachers of the final teams. The first area, the preparation and the research process of students, were investigated in three aspects. One was the level of cooperation, participation, support and the role of teachers. The second was the information search and experiment, and the third was the report writing. The students of the final teams from both years, had positive opinion about the cooperation, students' active involvement, and support from family and school. Students considered their teachers to be a guide or a counsellor, showing their level of active participation. On the other hand, the interview of 1993 participants showed that there were times that teachers took strong leading role. Therefore one can conclude that students took active roles most of the time while the room for improvement still exists. To search the information they need during the period of the preparation, student visited various places such as libraries, bookstores, universities, and research institutes. Their search was not limited to reading the books, although the books were primary source of information. Students also learned how to organize the information they found and considered leaning of organizing skill useful and fun. Variety of experiments was an important part of preparation and students had positive opinion about it. Understanding related theory was considered most difficult and important, while designing and building proper equipments was considered difficult but not important. This reflects the students' school experience where the equipments were all set in advance and students were asked to confirm the theories presented in the previous class hours. About the reports recording the research process, students recognize the importance and the necessity of the report but had difficulty in writing it. Their reports showed tendency to list everything they did without clear connection to the problem to be solved. Most of the reports did not record the references and some of them confused report writing with story telling. Therefore most of them need training in writing the reports. It is also desirable to describe the process of student learning when theory or mathematics that are beyond the level of middle school curriculum were used because it is part of their investigation. The second area of evaluation was about the format and the proceeding of the Contest, the problems given to students, and the process of student discussion. The format of the Contests, which consisted of four parts, presentation, refutation, debate and review, received good evaluation from students because it made students think more and gave more difficult time but was meaningful and helped to remember longer time according to students. On the other hand, students said the time given to each part of the contest was too short. The problems given to students were short and open ended to stimulate students' imagination and to offer various possible routes to the solution. This type of problem was very unfamiliar and gave a lot of difficulty to students. Student had positive opinion about the research process they experienced but did not recognize the fact that such a process was possible because of the oneness of the task. The level of the problems was rated as too difficult by teachers and college students but as appropriate by the middle school students in audience and participating students. This suggests that it is possible for student to convert the problems to be challengeable and intellectually satisfactory appropriate for their level of understanding even when the problems were difficult for middle school students. During the process of student discussion, a few problems were observed. Some problems were related to the technics of the discussion, such as inappropriate behavior for the role he/she was taking, mismatching answers to the questions. Some problems were related to thinking. For example, students thinking was off balanced toward deductive reasoning, and reasoning based on experimental data was weak. The last area of evaluation was the effect of the Contest. It was measured through the change of the attitude toward science and science classes, and willingness to attend the next Contest. According to the result of the questionnaire, no meaningful change in attitude was observed. However, through the interview several students were observed to have significant positive change in attitude while no student with negative change was observed. Most of the students participated in Contest said they would participate again or recommend their friend to participate. Most of the teachers agreed that the Contest should continue and they would recommend their colleagues or students to participate. As described above, the "Discussion Contest of Scientific Investigation", which was developed and tried as a new science contest, had positive response from participating students and teachers, and the audience. Two among the list of results especially demonstrated that the goal of the Contest, "active and cooperative science learning experience", was reached. One is the fact that students recognized the experience of cooperation, discussion, information search, variety of experiments to be fun and valuable. The other is the fact that the students recognized the format of the contest consisting of presentation, refutation, discussion and review, required more thinking and was challenging, but was more meaningful. Despite a few problems such as, unfamiliarity with the technics of discussion, weakness in inductive and/or experiment based reasoning, and difficulty in report writing, The Contest demonstrated the possibility of new science learning environment and science contest by offering the chance to challenge open tasks by utilizing student science knowledge and ability to inquire and to discuss rationally and critically with other students.

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한성과학고등학교 학생 선발과정의 현황 분석 (An analysis of current condition of student's selection process in Hansung science highschool)

  • 동효관;전영석
    • 영재교육연구
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    • 제13권4호
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    • pp.65-94
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    • 2003
  • 본 연구는 과학 고등학교 선발 과정의 개선을 위한 기초 연구로서 현행 과학 고등학교 선발과정을 분석하여 선발 현황을 파악하는 데 그 목적이 있다. 이를 위해 먼저 선발 전형의 응시자격, 응시절차, 선발절차, 선발준거 등의 요인에 대한 타당성을 분석하였으며 한성과학고등학교 2학년 학생들을 대상으로 전형종류와 입학 성적, 학교에서의 성취도 및 진로 선택 결과 사이의 연관성을 살펴보았다. 이를 위해 학생들의 수학·과학 과목의 내신 성적 및 학생 개인에 대한 담당 교사들의 평가 결과를 분석하였다. 또한 기존 선발 도구로 사용한 선발 문항을 분석하였다. 선발 절차에 대한 분석 결과, 성적 중심의 응시자격으로 인해 수학·과학의 성장 가능성이 큰 학생들의 응시기 회가 박탈될 수 있다는 문제점이 도출되었다. 또한 과학고에서의 학업 성취도 및 진로 선택 상황을 볼 때, 인지 능력뿐만 아니라 성격이나 태도의 측면을 포함하는 다면적인 평가를 실시하여야 하며 교사의 지속적인 관찰 결과가 평가의 중요한 요소가 되어야 한다는 것을 확인하였다. 한편, 선발고사 문항은 발산적 사고와 다양한 탐구 기능을 요구하는 문항이 더 많이 개발될 필요가 있으며 다양한 교과 내용에서 출제될 필요가 있다는 점을 개선점으로 확인하였다. 또한 가능하면 선수학습의 효과를 최소화 할 수 있도록 문항이 개발되어야 하며 학생들의 관심과 능력이 다양하기 때문에 모든 전형 요소를 합산하기보다는 다단계 전형을 위한 여러 줄 세우기의 방식이 바람직하며 이를 위해서는 학생의 창의력과 성장 잠재력을 정확하게 측정하는 선발체제를 새로 개발하는 것이 필요하다는 결론을 얻었다.AM-1의 발현은 신 손상 특히 사구체 손상의 정도를 잘 반영하고 있으며 예후 인자로서도 유용하게 이용할 수 있다고 생각한다.으로는 1-2년 이내에 17% 정도가 혈뇨의 소실을 보였으며, 추적관찰 기간 중 신부전으로 진행하는 경우는 한 례도 없었다. 결론: 무증상성 혈뇨를 진단, 치료함에 있어 진행성 신질환의 가능성을 시사하는 예후인자가 없다면 신생검보다는 지속적이고 정기적인 추적관찰만으로도 충분할 것으로 생각된다도 등은 양군 사이에 유의한 차이가 관찰되지 않았다. 발견 당시 혈청 $C_3$치의 감소는 모두 11명(61.1%)에서 관찰되었는데, 증상군에서는 7명(87.5%), 집단뇨검사군에서는 4명(40%)으로 증상군에서 혈청 $C_3$치의 감소가 보다 현저하였다. 그러나 추적관찰 기간 동안 증상군에서는 7명 중 4명, 집단뇨검사군에서는 4명 중 1명에서 혈청 $C_3$치는 정상범위로 증가하여 최종 관찰시점에서는 6명 (33.3%)에서만 혈청 $C_3$치의 감소가 지속되고 있다. 혈청 $C_3$치의 감소를 보인 경우를 다시 병리조직학적 분류에 의해 세분하여보면 발병당시에는 I형 8명(61.5%), II형에 1명(100%), III형 2명(50%)에서 관찰되었는데, 최종 시점에서는 I형 4명(30.8%), II형 1명(100%), III형 1명(33.3%)이었다. 또한 증상군에서 세포성 반월체형성과 세뇨관위축의 빈도가 높았으며, 사구체 혈관벽 비후와 사구체 간질의 증가의 정도가 집단뇨검사군에 비해 통계적으로 유의하게 높았다.