• Title/Summary/Keyword: Misconceptions

Search Result 374, Processing Time 0.025 seconds

Development of a CAI Program on Atmospheric Pressure and the Effects of the CAI on Middle School Students' Science Achievement and Conceptual Change (대기압 개념학습을 위한 컴퓨터 보조수업 프로그램 개발 및 적용)

  • Kook, Dong-Sik;Choi, Dong-Ha
    • Journal of the Korean earth science society
    • /
    • v.22 no.2
    • /
    • pp.89-95
    • /
    • 2001
  • The purposes of the study are (1) to develop a Computer-Assisted Instruction (CAI) program to deal with middle school students' misconceptions on the concept of atmospheric pressure, and (2) to investigate the effects of the CAI on students' achievement and conceptual change. The findings of the study are as follows: (1) Misconceptions about atmospheric pressure found are similar to the ones identified in earlier studies, (2) A CAI program on atmospheric pressure was developed based on the students' misconceptions identified, and (3) The instruction using CAI program has very positive effects on students' science achievement and conceptual change.

  • PDF

Korean Fifteen-Year-Olds' Alternative Conceptions on the Greenhouse Effect Revealed in PISA Test Results (PISA 검사 결과에서 드러난 만15세 한국 학생들의 온실효과에 대한 대안적 개념)

  • Kwak, Young-Sun
    • Journal of The Korean Association For Science Education
    • /
    • v.24 no.3
    • /
    • pp.668-674
    • /
    • 2004
  • This study investigated Korean fifteen-year-olds' (mis)conceptions on the greenhouse effect based on the PISA results. Based on previous studies on students' ideas about the greenhouse effect, Korean students'understanding of the natural factors and human-induced factors of the greenhouse effect were analyzed. Students' misconceptions about causes of the greenhouse effect were also examined. In addition to CO2, Students mentioned CFCs, atmospheric pollution, water vapor and methane as greenhouse gases. Many students indicated that the greenhouse effect and ozone depletion have a causal relationship. Teaching implications of the misconceptions were also discussed.

Childhood Fever Management: Current Practice vs Evidence (아동의 발열관리: 현황 및 과학적 근거)

  • Kim, Jin Sun
    • Child Health Nursing Research
    • /
    • v.22 no.2
    • /
    • pp.126-136
    • /
    • 2016
  • Purpose: The purposes of this review were to address misconceptions of childhood fever and fever management practice among parents and health care providers, and to identify the scientific evidences against such misconceptions and practices. Methods: Journal databases and clinical guidelines from 2000 to 2015 were searched. The search terms were fever, fever management, misconception, myth, fiction, fact, fever phobia, child, antipyretics, tepid bath, alternating use/combined use of antipyretics, and physical cooling method. Results: There are significant gaps between current concepts and practices, and the scientific evidence. Misconceptions and unrealistic concerns about childhood fever still exist among parents and even health care providers, worldwide. The evidences suggest that antipyretics should be given carefully with the aim of relieving discomfort or pain rather than decreasing the temperature itself. Alternating use of antipyretics should be discouraged due to the risk of confusion and error. Antipyretics do not prevent febrile convulsions. Moreover, the scientific evidence does not support tepid sponge massage. Conclusion: Evidence-based childhood fever management interventions should be targeted toward parents and health care providers. By adopting an evidence-based approach to nursing interventions, pediatric nurses can ensure children receive appropriate and safe fever management.

The effectiveness of learning cycle approach to the construction of the concept of density and development of transformation ability of INRC group related to the concept of density (밀도개념과 밀도개념에 관련된 INRC 군 변환 능력의 형성에 미치는 순환학습의 효과)

  • Choi, Byung-Soon;Kim, Chung-Ho
    • Journal of The Korean Association For Science Education
    • /
    • v.12 no.2
    • /
    • pp.31-42
    • /
    • 1992
  • The purposes of this study were to find out the degree of formation of the concept of density for the junior high students. The changing pattern of concept in acquiring the concept of density and the degree of development of INRC transformation ability related to the concept of density were also analyzed according to cognitive level and teaching method. The results of this study were as follows. 1) The experimental group were more effective than control group in the formation of the concept of density. 2) Even though students had been taught the concept of density, the various types of preconception were remained and persisted. Especially, the students at concrete level had persisted misconceptions and these misconceptions had been changed to the other misconceptions. 3) In the degree of the formation of the transformation ability of INRC group related to the concept of density in solid phase, the experimental group developed much better on both the abilities of Reciprocal transformation, Correlative transformation and the abilities to manipulate two variables such as volume and mass than control group. 4) The correlation coefficient between GALT score and achivement of the concept of density was 0.67. The correlation coefficient between achivement of the concept of density and the formation the transformation of INRC group related to the concept of density was 0.78.

  • PDF

An Analysis on the Actual Conditions of the Mathematical Misconceptions Held by the Gifted Education Learners (수학영재교육 대상자의 수학용어에 대한 오개념 실태 조사)

  • Nam, Seung-In
    • Journal of Elementary Mathematics Education in Korea
    • /
    • v.15 no.1
    • /
    • pp.179-198
    • /
    • 2011
  • The understanding of mathematical concepts should be backed up on a constant basis in oder to grow problem-solving skills which is one of the ultimate goals of math education. The purpose of the study was to provide readers with the information which could be considered valuably for the math educators trying both to prevent mathematical misconceptions and to develop curricular program by estimating the actual conditions and developing backgrounds of the mathematical misconceptions held by the gifted education learners. Accordingly, this study, as the first step, theoretically examined the meaning and the developing background of mathematical misconception. As the second step, this study examined the actual conditions of mathematical misconceptions held by the participant students who were enrolled in the CTY(Center for Talented Youth) program run by a university. The results showed that the percentage of the correct statements made by participant students is only 35%. The results also showed that most of the participant students belonged either to the level 2 requiring students to distinguish examples from non-examples of the mathematical concepts or the level 3 requiring students to recognize and describe the common nature of the mathematical concepts with their own expressions based on the four-level of concept formulation. The causes could be traced to the presentation of limited example, wrong preconcept, the imbalance of conceptual definition and conceptual image. Based on the estimation, this study summarized a general plan preventing the mathematical misconceptions in a math classroom.

  • PDF

Modification of the Experimental Setup to reduce Misconceptions for the Voltaic Cell described in High School Chemistry Textbooks (고등학교 화학 교과서에 기술된 볼타 전지의 오개념을 줄이기 위한 실험 장치 개발)

  • Nak Han Jang;Kyung Ok Lee;Jin Seung Lee;Jung Sang Suh
    • Journal of the Korean Chemical Society
    • /
    • v.47 no.1
    • /
    • pp.79-86
    • /
    • 2003
  • Misconceptions of students for a Voltaic cell were studied and their contents described in the high school chemistry II textbooks were analyzed. This study shows that students have many misconceptions and a few of chemistry textbooks contain some false description in a Voltaic cell. In the most textbooks, the reasons why the measured cell voltage of a Voltaic cell is near 1.1 V at the initial stage and then it decreases with time are not explained clearly. The emf of a Voltaic cell at a standard state is 0.76 V but in some textbooks it is described as 1.1 V of a Daniel cell. Even after learning the Voltaic cell or performing the experiment of textbooks, most students still have some misconceptions. These may be due to at least two following facts: the first is that the measured cell voltage of a Voltaic cell at the initial stage is very similar to that of a Daniel cell. The second is that the most experiment of a Voltaic cell is not performed under the condition of a standard state. Therefore, we have suggested a model of the modified experimental setup of a Voltaic cell that could reduce misconceptions of students.

High School Students's Misconceptions on Genetics and Evolution (고등학생(高等學生)들의 유전(遺傳)과 진화(進化)에 대(對)한 오개념(誤槪念))

  • Chung, Wan-Ho;Cha, Hee-Young
    • Journal of The Korean Association For Science Education
    • /
    • v.14 no.2
    • /
    • pp.170-183
    • /
    • 1994
  • In this study, in order to find our high school students' misconceptions on genetics and evolution, a free-answer form of questionnaire, specially designed through analysis of high school biology curriculum, was developed and sent to one hundred and eight high school students in Seoul area. Their responses were collected and qualitatively analyzed. Main results of the study can be summarized as follows: 1. Some students misunderstood that aquired chracters are inherited. 2. Several students weren't instructed clearly about gene. For example, they responsed that genes are not material, composed of proteins, exist only in reproductive cells and are not in plant cells at all. 3. Some students confused chromosome with chlorophyll, dorminant (in dorminant character) with excellent. They are caused by similar spells in Korean letter 4. Half students misconceptualized that organisms evolve just when their environment changes for the worse. 5. Many students believed orthogenesis.

  • PDF