Analysis of High School Students’ Science Teachers Images Using Semantic Network Analysis

Author(s):  
Ai Nurlaelasari Rusmana ◽  
Rahmi Qurota Aini ◽  
Yustika Sya’bandari ◽  
Minsu Ha ◽  
Sein Shin ◽  
...  

Author(s):  
Isaac Taylor ◽  
Isaac Sonful Coffie ◽  
Stephen Agyei ◽  
Justice Edusei Ackah

The purpose of this study was to determine school and teacher-related factors affecting low academic performance of senior high school students in integrated science in some selected districts in western region of Ghana. The research design used in this study is descriptive cross-sectional survey. The population of the study was made up of students and science teachers in selected senior high schools in the study area which comprises three districts; Ellembele District, Jomoro District and Nzema-East Municipal. A Sample of 342 students and 18 teachers were used for this study. In carrying out the study, a questionnaire was used as the main instrument for the data collected which were analyzed using descriptive statistics. From the results, it was seen that school-related factors causing poor performance in Integrated Science among students include; the inadequacy of facilities, poor state of existing facilities, general disturbances in class and the ineffective supervision of teaching. Moreover, inadequate number of science teachers, inability to complete syllabi, poor teaching style and little time spent in teaching were among the teacher-related factors which caused low academic performance in Science.


2019 ◽  
Vol 18 (6) ◽  
pp. 943-954
Author(s):  
Tamara N. Rončević ◽  
Željka Đ. Ćuk ◽  
Dušica D. Rodić ◽  
Mirjana D. Segedinac ◽  
Saša A. Horvat

This research considered students’ abilities to read images about dispersed systems, taken from the chemistry textbook. 103 high school students (37 males, 63 females, and 3 unknown) from the school “Svetozar Marković“ in Novi Sad, Republic of Serbia, were included as the research participants. Students’ abilities to suggest the titles of the realistic, conventional, and hybrid textbook images about dispersed systems, as well as their written interpretations of images contents, were examined. The collected data were analysed qualitatively, and information about students’ conceptual understandings and misunderstandings about selected chemistry topic was provided. Identified misunderstandings, some of which are the contribution of this research, gave significant results. Additionally, it was concluded that the majority of students’ difficulties were related to reading realistic textbook images. Students relied on what they literally saw in the photography without making proper connections with chemical contents about dispersed systems. The findings of the present research could be helpful for science teachers and educators, interested in how and why students use textbook images to learn science concepts. They will also alert authors and textbook illustrators to pay more attention to the selection of appropriate textbook images. Keywords: image types, general chemistry, reading images, textbook images, visual representations.


2000 ◽  
Vol 22 (22) ◽  
pp. 83
Author(s):  
João Batista Teixeira Rocha ◽  
Nilda Vargas Barbosa ◽  
Maria Rosa Schetinger ◽  
Maria Ester Pereira

Nowadays, science education has been extensively criticized mainly due to the fact that teaching science procedures have not allowed the formation of individuals that use science knowledge to solve problems on their daily lives. The low quality of science education certainly is responsible for the stereotyped view that population has about science and scientist, and also for the inadequate conceptions about the nature of scientific knowledge.Consequently, the development of methodologies that can enhance the quality of science education are needed. In the present report, the effect of a short course (40 hours) based on the resolution of problems (and that can be classified as apprentice centered) of high-school teachers and students from Santa Maria and surroundings were evaluated. The Nature of Scientific Knowledge Scale (NSKS) was used and this scale is sub-divided in 6 conceptual subscale (amoral, creative, developmental, parsimonious, testable, and unified). The results showed that the experimental courses (muscle contraction, digestion, respiration, and photosynthesis), in which the apprentices are engaged in solving their own problems, improved the students and teachers understanding about the nature of scientific knowledge. The improvement on the test (NSKS) occurred predominantly within the creative subscale, presumably due to the fact that the apprentices had to be creative in order to solve the proposed or generated problems during the course. These results suggest that it would be useful to teachers in service (as well as preservice teachers) to experience problem-based and experimental courses, because a better understanding of the nature of scientific knowledge by science teachers certainly will improve science education, at least with regard to the high-school students understanding.


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