scholarly journals Determination of Prospective Chemistry Teachers’ Cognitive Structures and Misconceptions About Stereochemistry

2018 ◽  
Vol 6 (9) ◽  
pp. 13 ◽  
Author(s):  
Mustafa Durmaz

The purpose of this study was to investigate the cognitive structures of chemistry teacher candidates about “stereochemistry”. A case study research method, one of the qualitative research patterns, was used in the study and the sample of study involved 28 prospective chemistry teachers who had taken Organic Chemistry I and II courses at Education Faculty of a middle Anatolian university. For the data collection, stereochemistry concept inventory comprising of 20 questions was used. In the analysis of data, students’ responses in SCI were categorized. The detailed analysis of the results indicated that chemistry teacher candidates had some misconceptions concerning stereochemistry parallel to the literature. Based on these observations, some suggestions were presented for improving students’ foundational understanding about stereochemistry.  

2011 ◽  
Vol 3 (2) ◽  
pp. 84-101
Author(s):  
Ali Kolomuç ◽  
Seher Tekin

Teachers play a great role in how students understand and learn the concepts taught in class. Studies show that teachers reflect their already-existing conceptual constructs and their problem-solving processes on students. This is also true of the misconceptions reflected in chemistry classes, especially when abstract concepts are being taught. The purpose of this study is to see the degree of understanding of chemistry teachers concerning the chemical reaction rate concept. A case study research method was used in the study whose sample consisted of 70 chemistry teachers from forty different cities in Turkey. The data were collected through a chemical reaction rate comprehension test comprising five open-ended questions. The results have indicated that teachers have some misconceptions concerning chemical reaction rate.


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Jolanda Hermanns ◽  
Nico Ermler

Abstract In this paper we describe and evaluate a study on the use of concepts in organic chemistry while solving tasks that are designed after the concept of school-related content knowledge (SRCK). The study was designed as a mixed methods study and conducted at a German university for the content of “organic chemistry”. As the results of this study show, the students rate the tasks and the use of anchoring concepts as for example “bonds” or “structure and function” as relevant for their future profession as a chemistry teacher. They therefore propose that concepts should be an integral part of their university studies as they find it lacking at the moment. Concepts can also be seen as an opportunity to build a bridge between school knowledge and university knowledge.


Author(s):  
Yogi Nugraha

ABSTRACT This study aims to describe the implementation of civic education courses in an effort to foster a sense of nationalism student at the Buana Perjuangan Karawang University. This study used a qualitative approach with the method used is the case study. Research conducted at the Buana Perjuangan Karawang University, with an estimated study time for start of the date October 28, 2017 until August 28, 2018. The target population in this study were students who follow courses of civic education, and sampling using techniques purposive sampling. The results obtained show that nationalism formed through civic education in college can be formed. It is based on a statement cited by respondents stated that the Civic Education is very important to learn in college, it's based on the erosion of a sense of nationalism began to be immediately addressed by studying Civics. Civic education is also learned to go back to the students will be taught by the teacher candidates Pancasila and Civic Education. Increased sense of nationalism in studying Civics is proof that Civic Education is so important to learn. Keywords: Civic Education, Nationalism, Students. ABSTRAK Penelitian ini bertujuan untuk mendeskripsikan pelaksanaan mata kuliah pendidikan kewarganegaraan dalam upaya memupuk rasa nasionalisme mahasiswa di Universitas Buana Perjuangan Karawang. Penelitian ini menggunakan pendekatan kualitatif dengan metode yang digunakan yaitu metode studi kasus. Penelitian dilaksanakan pada Universitas Buana Perjuangan Karawang, dengan estimasi waktu penelitian selama mulai dari tanggal 28 Oktober 2017 sampai dengan tanggal 28 Agustus 2018. Populasi target dalam penelitian ini adalah mahasiswa yang mengikuti mata kuliah pendidikan kewarganegaraan, dan pengambilan sampel menggunakan teknik purposive sampling. Hasil penelitian yang diperoleh menunjukkan bahwa nasionalisme yang terbentuk melalui pembelajaran pendidikan kewarganegaraan di perguruan tinggi dapat terbentuk. Hal ini berdasarkan pernyataan yang diutarakan oleh para responden yang menyatakan bahwa Pendidikan Kewarganegaraan sangat penting untuk dipelajari di Perguruan Tinggi, hal ini didasarkan pada mulai lunturnya rasa nasionalisme haruslah segera diatasi dengan mempelajari Pendidikan Kewarganegaraan. Pendidikan Kewarganegaraan juga dipelajari untuk kembali dibelajarkan kepada peserta didik nantinya oleh para calon guru Pendidikan Pacasila dan Kewarganegaraan. Meningkatnya rasa nasionalisme dalam mempelajari Pendidikan Kewarganegaraan merupakan bukti bahwasanya Pendidikan Kewarganegaraan begitu penting untuk dipelajari. Kata kunci: Pendidikan Kewarganegaraan, Nasionalisme, Mahasiswa.


Sociologija ◽  
2015 ◽  
Vol 57 (1) ◽  
pp. 152-167
Author(s):  
Ivana Milovanovic

This paper represents a contribution to the consideration of the characteristics of the case study research method in sociological researches. In the first part of paper, some specifics of case study method are described, in the second part we represented ways of use of this method in field research. finally, third part of this paper indicates certain ?sub methods? within case study method, such as ?building blocks? and ?process tracing?, which are, at the same time, conditions for developing typological theories. Those ?sub methods? indicate evolution of case study method in social sciences during last few decades, as well as importance of existence and use of such ?elastic? method in all, especially field researches where researcher is facing with a series of cognitive concerns.


2018 ◽  
Vol 6 (2) ◽  
pp. 287-298
Author(s):  
Silfi Zainatu Sholihah ◽  
Ekasatya Aldila Afriansyah

AbstrakMatematika memiliki peranan penting dalam kehidupan. Namun, dalam praktik pembelajarannya sebagian siswa masih menganggap matematika sebagai mata pelajaran yang sulit. Bukti-bukti di lapangan menunjukkan bahwa hasil belajar geometri masih rendah. Kesulitan pada materi geometri dapat berdampak pada kesulitan-kesulitan bagian lain dalam materi geometri itu sendiri, karena banyak pokok bahasan dalam geometri yang saling berhubungan. Penelitian ini bertujuan untuk mengetahui faktor penyebab kesulitan siswa dalam proses pemecahan masalah geometri berdasarkan tahapan berpikir Van Hiele serta untuk melihat ketercapaian siswa dalam pemahaman geometri berdasarkan tahapan berpikir geometri Van Hiele. Metode penelitian yang digunakan adalah metode penelitian kualitatif dengan jenis penelitian studi kasus. Subjek penelitian yang diambil sebanyak 6 siswa dari kelas VII C SMP Negeri 6 Garut. Hasil penelitian menunjukkan bahwa ketercapaian siswa pada proses pemecahan masalah geometri berdasarkan tahapan berpikir Van Hiele paling banyak adalah pada tahap 0 (visualisasi). Hal ini ditunjukkan dengan tingginya persentase pencapaian siswa pada tahap visualisasi yaitu sebanyak 96,87 %. Ketercapaian tahapan berpikir Van Hiele yang paling baik dicapai sebesar 3,13% pada tahap 1 (Analisis). Untuk tahap 2 (deduksi informal) dan tahap 3 (deduksi) belum ada siswa yang mampu mencapai tahapan tersebut. Faktor yang menjadi penyebab kesulitan siswa dalam materi segiempat disebabkan karena beberapa hal, yaitu pemahaman mengenai konsep dan sifat-sifat segiempat yang kurang, pemahaman sebelumnya mengenai materi bangun datar segiempat yang masih kurang kuat, kurangnya keterampilan menggunakan ide-ide geometri dalam memecahkan masalah matematika yang berkaitan dengan bangun segiempat, serta kondisi kelas yang kurang kondusif untuk belajar.Kata Kunci: Kesulitan siswa pada geometri, tahapan berpikir Van Hiele, Kualitatif, Studi Kasus.AbstractMathematics has an important role in life. However, in the practice of learning some students still regard mathematics as a difficult subject. The evidence in the field shows that the geometry learning result is still low. Difficulties in geometrical matter can affect the difficulties of other parts of the material itself, since many of the subjects in the geometry are interconnected. This study aims to determine the factors causing student difficulties in the process of solving geometry problems based on the stages of thinking Van Hiele and to see students' achievement in understanding geometry based on the stages of thinking geometry Van Hiele. The research method used is qualitative research method with case study research type. Research subjects taken as many as 6 students from class VII C SMP Negeri 6 Garut. The results showed that students' achievement in the process of solving geometry problems based on the stage of thinking Van Hiele at most is at stage 0 (visualization). This is indicated by the high percentage of student achievement in the visualization stage that is as much as 96.87%. The achievement of the best stage of Van Hiele thinking was achieved at 3.13% in stage 1 (Analysis). For stage 2 (informal deduction) and stage 3 (deduction) no students have been able to reach that stage. Factors that cause student difficulties in rectangular material caused by several things, namely the understanding of the concept and the characteristics of the rectangle is lacking, previous understanding of the material wake rectangular flat that is still less strong, the lack of skills to use geometric ideas in solving math problems Relating to wake up quadrilateral, as well as class conditions that are less conducive to learning.Keyword: Student difficulties on geometry, Van Hiele thinking stages, Qualitative, Case Studies.


2017 ◽  
Vol 2 (1) ◽  
pp. 6
Author(s):  
Rose Emmaria Tarigan

Use of social media creates positive or negative impacts on adolescents. There are a number of factors enabling adolescents to make use of social media positively. One of the factors studied in this research is the adolescent worldview. The adolescent worldview greatly determines the way she behaves and her attitude towards social media. The result of this research shows that adolescent worldview may release and enables her to reject negative impacts of social media, particularly from modern cultural -isms as relativism, individualism, emotionalism, presentism (present-time ism), materialism, autonomy, victimism, and turn it into a positive impact on herself. Worldviews may be differentiated based on three categories namely religion, spirituality and secularity. This research is conducted by explorative-qualitative approach, using case study research method. Data collection was conducted by in-depth interview with late adolescents.


2021 ◽  
Vol 3 (2) ◽  
pp. 84-93
Author(s):  
Santi Komaladini ◽  
Popon Popon

This study aims to determine the application of the divergent semantic intervention method in motor transcortical aphasia clients after stroke, male gender aged 44 years at the Cibabat Regional General Hospital. The research method used is a case study research experiment which aims to determine the condition of the subject before and after intervention through therapy. Data collection was carried out through the WOTS stage, namely (1) interviews with the client's parents, (2) direct observation of the client, (3) conducting tests on the client, and (4) studying the patient's medical record document. The results of the research after doing therapy using the divergent semantic intervention method for 15 meetings obtained good results by assessing the level of words on nouns. The conclusion is that the divergent semantic intervention method has an effect on mentioning the level of objects


2017 ◽  
Vol 7 (4) ◽  
pp. 19-31 ◽  
Author(s):  
Ahmed Bin Touq ◽  
Anthony Ijeh

The study explores the impact of participatory systems on information quality using Abu Dhabi as a case study. Participatory systems are used for deciding social change to affect residents and citizens positively. The case study research method was used to examine information quality in a participatory system. Content of the participatory system was assessed for information quality and it was found to support theoretical claims that Abu Dhabi residents and citizens participate in building sustainable competition using participatory systems. The limitations of the study are found in its focus on a single application, the app CityGuard. Through examining the use of CityGuard, specific issues were recognized which allowed the definition of steps on how its use could impact social change more positively. This paper presents findings from the use of CityGuard as a public participatory tool.


2020 ◽  
pp. 193896552097128
Author(s):  
Kadir Çakar ◽  
Şehmus Aykol

This systematic literature review aimed to investigate the use of case study method in hospitality and tourism research to increase the awareness about the use of case study as a research method. Data were collected ( n = 871) from 10 leading hospitality and tourism journals published between 1974 and 2020. A thematic analysis of the data was conducted using Leximancer as a computer-aided analysis software. The study findings reveal an overall mislabel and misuse of the case study method. Suggestions are provided to improve case study method applications and increase case study research for more theory development in hospitality and tourism research.


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