• 대한지구과학교육학회지
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• 제15권3호
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• pp.322-334
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• 2022

본 연구에서는 생활과학교실 강사의 프로그램 개발 및 수업 운영에서 겪는 어려움과 이를 바탕으로 한 연수에 대한 요구를 파악하고자 하였다. 이를 위하여 2022년 생활과학교실 강사 193명을 대상으로 온라인 설문조사를 실시하였고, 13명을 대상으로 면담을 실시하였다. 연구결과, 생활과학교실 강사들이 프로그램 개발에서 겪는 어려움은 수업 컨텐츠의 부족, 프로그램 개발 예산의 부족, 수업 운영에 필요한 기자재의 부족 등이 나타났으며, 수업 운영에서 겪는 어려움은 돌발상황, 시간 부족 등 계획 대로 운영되지 않는 상황으로 인한 어려움, 토의 및 실습과 같은 다양한 교육 방식 적용의 어려움 등으로 나타났다. 선호하는 연수 내용은 최신 과학기술, 기존 프로그램의 재구성 방법, 지역특화기술 순으로 나타났다. 또한 수업 운영에서 강사들이 겪는 어려움은 체험 키트를 사용하는 수업 운영 방식에서 비롯된 것으로 나타났다. 따라서 체험키트를 사용해야만 하는 생활과학교실 조건에서 강사가 최상의 교육을 할 수 있도록 돕는 방향으로 강사 교육이 이루어져야 한다.

• 한국초등과학교육학회지:초등과학교육
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• 제28권4호
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• pp.495-506
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• 2009

The purposes of the study were to examine the effect of 'Hands-on Science Class at School' program on students' scientific attitude and interest, and to investigate the satisfaction differences by students, lecturers, and local operating organizations respectively. For this study, 1,054 students from 1st to 6th grade participated in the national-wide survey, while they engaged in the program activities during 3 months. 496 students participated in scientific attitude test and 558 students answered to scientific interest test. For the program satisfaction survey, 689 out of 1,054 students, 363 lecturers and 55 local operating organizations also participated. The data show that 'Hands-on Science Class at School' program gave positive influences on students' scientific attitude improvement. The program also had considerable effects on increasing students' interest toward science as well. The satisfaction survey results showed that students' satisfaction with the program was significantly higher than lecturers'. The educational implications are discussed.

• 한국식품조리과학회지
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• 제23권3호통권99호
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• pp.321-326
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• 2007

The microbial contamination levels of school classrooms were assessed as foodservice environments for elementary students. Two elementary schools located in Kyunggi-do were selected, and the total plate counts (TPC) and coliforms were measured from the classroom facilities, including the tables, chairs, floors, shelves, doors, as well as the hands of students, and the air of classrooms. The TPC of the classroom facilities were relatively low ranging from 2.30 to 3.79 log CFU/100 cm$^2$. The TPC counts from the hands of serving students and served students, were 6.39 and 5.33 log CFU, respectively, and the TPC counts of the foodservice utensils were <3.00 log CFU/ea before use and 4.77 CFU/ea after use. The air samples of 'empty classrooms during physical education', 'after physical education class', and 'during lunch' showed the contamination levels of 26 CFU/m$^3$,392 CFU/m$^3$, 364 CFU/m$^3$, respectively, suggesting that the microbial levels in the air varies greatly depending on the class activity before foodservice. When the TPCs of the air during lunch were measured from 18 classrooms, the levels ranged from 76 to >2228 CFU/m$^3$. Coliforms were not detected in the classroom facilities; however, air samples of the classrooms showed 1${\sim}$2 CFU/m$^3$. The above results show that classroom air and the hands of students, can have high levels of microbial contamination, which must to be controlled for safer school foodservice.

• 실천공학교육논문지
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• 제7권1호
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• pp.1-9
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• 2015

본 연구에서는 미국에서 시발된 STEM(Science, Technology, Engineering, Mathematics)교육과 이를 벤치마킹하여 만든 한국의 STEAM(Science, Technology, Engineering, Arts, Mathematics)교육의 실태를 조사하여 대학용 STEM교육을 주관적으로 정의하고 이를 달성하기 위한 방안을 제안한다. 현재의 STEM교육은 초등학교에서 고등학교를 대상으로 하고 있지만, 조만간 그 여파가 대학에까지 미칠 것이 예측되므로 STEM교육을 기반으로 하는 수학교육 방안을 제안한다. 대학 4학년 때에 수행하는 졸업설계작품을 통한 기술(T)과 공학(E)에 대한 탐구활동과 hands-on 활동을 2학년 때에 배우는 수학교과목 중 하나인 미분방정식의 학습도구로 취급하는 새로운 교육 및 학습방안을 제안한다. STEM교육의 중요성을 교훈하기 위해서 실제 사회의 문제가 즉시 전달되어야 한다는 것을 강조한 통로가 설치된 뫼비우스 띠를 STEM교육의 심벌로 도입 및 설정한다.

• 한국임상보건과학회지
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• 제8권1호
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• pp.1355-1361
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• 2020

Purpose: This study was conducted to investigate the effect of flipped-learning method on dental hygiene practice satisfaction. Methods: The study was a patient-group crossover design involving 53 third-year students at D's Department of Dental Hygiene. The study tools used self-questionnair and the analysis program used SPSS Ver 25.0. Results: Class satisfaction increased to 3.85 in the first semester and 4.23 in the second semester (p <0.05). Satisfaction with the flip learning method was 4.26, and most answered yes. In addition, it showed a positive effect on class satisfaction (p <0.01). As a result, it can be seen that the flip-learning learning method has a positive effect on the learners' learning motivation, academic achievement, and class satisfaction. Conclusions: it is considered that the flip learning method for hands-on classes should be expanded for the purpose of fostering job competency and high quality clinical practice experts.

• Animal Systematics, Evolution and Diversity
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• 제22권2호
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• pp.153-168
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• 2006

A taxonomic study on the marine sponges was conducted with the materials collected from Chujado Island, Korea during the period June 2001 to May 2005 by SCUBA and hands. They were classified into 63 species, 31 genera, 25 families, seven orders in a class. Among them, Antho (Arcania) manarensis Carter, 1880 and Eurypon lendenfeldi Hentschel, 1912 were newly added to Korean Fauna. Two species, Biemna chujaensis and B. jeolmyongensis, were new to science.

• Physical Therapy Rehabilitation Science
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• 제8권4호
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• pp.194-201
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• 2019

Objective: This study aimed to investigate the reliability and validity of muscle thickness (MT) and pennation angle (PA) measurements of the ankle muscle, including the tibialis anterior (TA) and the medial gastrocnemius (MGCM), using a hands-free fixed probe and to compare it with the conventional linear probe. Design: Observational inter-rater reliability study. Methods: Thirty-three healthy subjects (20 male, 13 female) were included. In all subjects, ultrasound images were acquired from the TA and MGCM using a hands-free fixed probe and a conventional linear probe in random sequence by two examiners at two time-points within a 7-day interval. MT and PA were calculated on the taken images. Intra-class correlation coefficients (ICC), 95% confidence intervals, standard error of measurement and the Pearson's correlation coefficient were used to estimate reliability and validity. And also, Bland-Altman plots were generated for a visual representation of MT and PA at the TA and MGCM. Results: The ICC for all intra-rater reliability was 0.943 to 0.995 and that for all inter-rater reliability was 0.928 to 0.993, indicating excellent reliability. A significantly high correlation was observed between MT and PA at the TA and MGCM with use of the hands-free fixed probe and the conventional linear probe (r>0.938; p<0.001). Conclusions: The hands-free fixed probe provided excellent images for measurement of the MT and PA of the TA and MGCM and is a useful device for making clinical measurements of muscle structure without grasping of the probe.

• 한국환경보건학회지
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• 제37권6호
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• pp.460-466
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• 2011

Objectives: Students in elementary schools usually wash their hands in a washstand. However, little attention is paid to the washstand itself. Today, the importance of personal sanitation and hygiene is greatly emphasized. Therefore students' parents and the public are growing increasingly interested in accessibility to washstands by elementary school students in their schools. Methods: With respect to this study, a survey of students and teachers inelementary schools was performed on the installation of washstands in order to determine the proper number of washstands per school. Results: The results show that 1.1 boys (per class) need a washstand, while 1.8 girls (per class) do so in order to maintain a 50% level of crowdedness. By of the regression equation, to maintain 50% congestion (50% of all students feel congestion) there should be 18.5 boys, and the 15.76 girls per washstand. Table 3 is based on the above results, the number of students per washstand (x) and congestion (y), separated by gender according to the results of regression analysis, the correlation of male models in the linear regression analysis and correlation of girls in the regression equation can be obtained. The linear regression fit of less than 0.7 determines that the coefficients of determination are 0.5399 and 0.4195, respectively. Significance was much smaller. Also, according to the simulation using the diffusion model, with 29 students per class more than one washstand should be provided in a school. Girls (per class) need 0.7 more washstands than boys (per class). Conclusions: More washstand facilities for girls than boys are needed. If the target is based on school class size two washstands should be installed. Finally, guidelines and/or standards in the Schools Health Act of Korea forin elementary school washstands is considerably needed.

• 한국과학교육학회지
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• 제32권6호
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• pp.1039-1049
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• 2012

The first category of Affective Domain objectives in Bloom's Taxonomy is about "Receiving". In it, the first subdivision listed is "Awareness" (Krathwohl, Bloom & Masia, 1964). Since these categories are intended to be hierarchical in ascending order of internalization, it is important that young learners be given ample opportunities in their learning experiences in class to be aware of positive values and effective life skills. This paper reports a feasibility study on the adoption of an integrative cognitive-affective learning approach in a primary school science lesson. 37 primary six students in a Singapore primary school were taught the concept of centre of gravity, including a hands-on activity to find the centre of gravity of an irregularly shaped cardboard by using a plumbline. After reviewing how a plumbline works, their teacher then led them into a discussion on the question "Who is the plumbline in your life?" a reference to identifying positive role models in their lives. From the transcript of the students' in-class sharing and their written responses to the question, it is clear that the integrative cognitive-affective learning approach did enable students to present their ideas and learning experiences in the affective domain quite readily. This conclusion provides a valuable lead to a follow-up project on whether students who are exposed to such integrative learning approaches will be more capable and more aware of identifying important positive social habits or values. If so, then the teaching of values in schools could take on a whole new dimension, that of borrowing students' learning energy in the cognitive domain to learn values and life skills in the affective domain.

• 한국초등과학교육학회지:초등과학교육
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• 제33권3호
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• pp.597-606
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• 2014

The purpose of this study is to survey and analyze difficulties in teaching and learning elementary school science on the chapter titled 'electric circuit'. 28 elementary school teachers who teach 5th grade science and 73 5th grade students in elementary school were taken part in this survey. The pilot questionnaire was distributed to find out both the degree and the reason of difficulties in teaching and learning. The answers are analyzed with four areas to extract elements which make class difficult; Learner factors (L), Instruction factors (I), Curriculum & textbooks factors (C), and Environment factors (E). The results are as follows. (1) It can be seen that both students and teachers feel the highest difficulty in 7th lesson 'the direction of current', while they felt little difficulty in lesson 3 'conductor and nonconductor' and lesson 8 'the safety of electricity'. (2) The most mentioned reason of difficulties in teaching and learning was Learner factors (L). (3) Teachers felt many difficulties in experimental environment. On the other hands, students didn't think experimental failures as serious trouble. (4) Students felt many difficulties in new terms and hazy concepts or expressions. (5) Teachers felt a lot of difficulties in those from Curriculum & textbooks factors.