scholarly journals Teaching of chemical bonding: a study of Swedish and South African students' conceptions of bonding

2016 ◽  
Vol 17 (4) ◽  
pp. 985-1005 ◽  
Author(s):  
Anders Nimmermark ◽  
Lars Öhrström ◽  
Jerker Mårtensson ◽  
Bette Davidowitz

Almost 700 Swedish and South African students from the upper secondary school and first-term chemistry university level responded to our survey on concepts of chemical bonding. The national secondary school curricula and most common textbooks for both countries were also surveyed and compared for their content on chemical bonding. Notable differences between the countries were found in textbooks and in the curriculum regarding the topics of ionic bonding, bond energetics and use of the VSEPR model, the latter being absent in the Swedish curriculum and ionic bonding not explicitly mentioned in the South African curriculum. To some extent these differences are reflected in the students’ responses to the survey. It is also clear that university teachers in both countries must prepare effective counter-measures against deep rooted misunderstandings. For the upper secondary school level it is suggested that the bond energetics and exothermic and endothermic reactions be clearly and carefully presented and separated as the study indicates that mixing of these two concepts is a major cause of confusion.

1970 ◽  
Vol 7 (1) ◽  
pp. 17-31 ◽  
Author(s):  
Carl Angell ◽  
Svein Lie ◽  
Anubha Rohatgi

TIMSS Advanced 2008 is an international comparative study, and deals with examining student achievement in mathematics and physics in the final year at upper secondary school. The theme of this article is to look at how Norwegian and Swedish students performed in physics in 2008 compared to the study conducted in 1995. The results from the TIMSS Advanced study provide an unambiguous picture. There is a significant decline in the performance in physics since the previous study in 1995 for both Norwegian and Swedish students. One important reason is related to the generally low level of results in science and mathematics at all levels in schools as shown by the downward trend for students in lower grades. The decline in physics performance can thus be explained by the fact that students with significantly weaker skills than before in mathematics and science come into upper secondary school. Lack of knowledge of basic arithmetic and algebra seems to be a contributing factor for this downwards trend in physics at upper secondary school level.


2018 ◽  
Vol 19 (3) ◽  
pp. 932-953 ◽  
Author(s):  
Jarkko Joki ◽  
Maija Aksela

Teaching chemical bonding using the octet rule as an explanatory principle is problematic in many ways. The aim of this case study is to understand the learning and teaching of chemical bonding using a research-informed teaching model in which chemical bonding is introduced as an electrostatic phenomenon. The study posed two main questions: (i) how does a student's understanding of chemical bonding evolve from lower- to upper-secondary school when an electrostatic model of chemical bonding was used at the lower-secondary level? (ii) How does the teaching of octets/full shells at the upper-secondary level affect students’ understanding? The same students were interviewed after lower-secondary school and again during their first year at upper-secondary school. Their upper-level chemistry teachers were also interviewed. The interview data were analysed using the grounded theory method. The findings showed that the students’ earlier proper understanding of the electrostatic-interactions model at the lower-secondary level did not prevent the later development of less-canonical thinking. Teachers’ pedagogical content knowledge (PCK) of the explanatory principles of chemical bonding and how to use explanations in science education needs to be promoted in both pre-service teacher education and during in-service training.


KINESTETIK ◽  
2017 ◽  
Vol 2 (1) ◽  
pp. 111-117
Author(s):  
Faisal Mandala Siregar ◽  
Yarmani Yarmani ◽  
Bogy Restu Ilahi

Abstrak Penelitian ini bertujuan untuk mengetahui prestasi ekstrakurikuler futsal. Metode yang digunakan adalah metode penelitian deskriptif. Subjek penelitian adalah 9 Sekolah Menengah Atas Negeri di Kota Bengkulu. Instrumen dari penelitian ini yaitu Observasi, Kuesioner, dan Dokumentasi. Hasil penelitian menunjukuan persentase perkembangan ekstrakurikuler futsal ditingkat SMA Negeri kota Bengkulu berkembang 5 sekolah 55,55%, belum berkembang 4 sekolah 44,44%. Setelah mendapatkan persenan data maka dapat perbandingan perkembangan ekstrakurikuler futsal ditingkat SMA N kota Bengkulu  5:4, adalah berkembang. Berdasarkan perolehan data perkembangan estrakurikuler futsal ditingkat SMA Negeri Kota Bengkulu harus memperhatikan indikator yang baik seperti pelatih berkompeten, manajemen yang baik, fasilitas, metode latihan dan prestasi. Maka  hasil data diperoleh dari sembilan sekolah ada 5 sekolah yang memiliki indikator yang baik. Sedangkan 4 sekolah dinyatakan belum ada perkembangan terlihat dari indikator yang belum memenuhi proses menunjangnya perkembangan ekstrakurikuler futsal.Kata kunci : SMA, Negeri, Berprestasi. Abstract This study aims to determine the futsal extracurricular achievement. The method used is descriptive research method. Research subjects are 9 State Senior High Schools in Bengkulu City. Instruments of this research are Observation, Questionnaire, and Documentation. The result of research shows that the percentage of extracurricular futsal development at the level of Upper Secondary School of State of Bengkulu grew by 5 schools 55.55%, not yet developing 4 schools 44.44%. After getting the data percentage then can comparison of extracurricular futsal development at Bengkulu 5: 4 High School level, is growing. Based on data acquisition of futsal estrakurikuler developments at State Senior High School of Bengkulu City should pay attention to good indicators such as competent trainers, good management, facilities, training methods and achievements. So the results of data obtained from nine schools there are 5 schools that have good indicators. While 4 schools stated there has been no visible development of indicators that have not fulfilled the process of supporting the development of extracurricular futsal.Keywords: Development, Extracurricular, Futsal.


2020 ◽  
Vol 4 (2) ◽  
pp. 25-43
Author(s):  
Satu Erra

Pohdin artikkelissani reflektiivistä kirjoittamista lukion äidinkielen ja kirjallisuuden opetuksessa: tarkastelen, miten reflektio näkyy lukiolaisten omaa kirjoittamista pohtivissa teksteissä. Liitän reflektion kirjoittajaidentiteetteihin, jotka hahmotan jatkuvina itsen ymmärtämisen prosesseina ja joihin ympäristöllä on suuri vaikutus. Käsitykseni taustalla vaikuttaa narratiivisen identiteetin teoria (Ricœur 1991, 1992), joka hahmottaa itsen ymmärtämisen hermeneuttisena kehänä. Tutkimusaineistoni koostuu 50:stä lukiolaisen omaa kirjoittamista reflektoivasta tekstistä. Kirjoitelma-aineiston lingvistisen analyysin perusteella reflektio näkyy pohdiskelevissa teksteissä etenkin omien valintojen ymmärtämisenä ja lukijan puoleen kurkottamisena. Kirjoittajat jakavat omaa kokemustaan ja toisaalta asettuvat keskustelemaan vaihtoehtoisten näkemysten kanssa.   Upper secondary school students’ writer identities and the process of self-understanding – reflective writing in the teaching of mother tongue and literature Abstract In my article I discuss reflective writing in the teaching of mother tongue and literature at the upper secondary school level. I associate reflection with writer identities, which I perceive as processes of self-understanding, influenced by the environment. This view is based on the theory of narrative identity (Ricœur 1991, 1992), which outlines self-understanding as a hermeneutic circle. The research material consists of 50 reflective texts written by upper secondary school students. According to the linguistic analysis of the texts, reflection is manifested as understanding about personal choices and reaching out to the reader. The writers present their own experiences as shared and, on the other hand, discuss alternative views within their texts. Keywords: writing, reflection, upper secondary school, mother tongue education, writer identity  


KINESTETIK ◽  
2018 ◽  
Vol 2 (1) ◽  
pp. 111-117
Author(s):  
Faisal Mandala Siregar ◽  
Yarmani Yarmani

mengetahui prestasi ekstrakurikuler futsal. Metode yang digunakan adalah metode penelitian deskriptif. Subjek penelitian adalah 9 Sekolah Menengah Atas Negeri di Kota Bengkulu. Instrumen dari penelitian ini yaitu Observasi, Kuesioner, dan Dokumentasi. Hasil penelitian menunjukuan persentase perkembangan ekstrakurikuler futsal ditingkat SMA Negeri kota Bengkulu berkembang 5 sekolah 55,55 %, belum berkembang 4 sekolah 44,44 %. Setelah mendapatkan persenan data maka dapat perbandingan perkembangan ekstrakurikuler futsal ditingkat SMA N kota Bengkulu 5:4, adalah berkembang. Berdasarkan perolehan data perkembangan estrakurikuler futsal ditingkat SMA Negeri Kota Bengkulu harus memperhatikan indikator yang baik seperti pelatih berkompeten, manajemen yang baik, fasilitas, metode latihan dan prestasi. Maka hasil data diperoleh dari sembilan sekolah ada 5 sekolah yang memiliki indikator yang baik. Sedangkan 4 sekolah dinyatakan belum ada perkembangan terlihat dari indikator yang belum memenuhi proses menunjangnya perkembangan ekstrakurikuler futsal.Kata kunci : SMA, Negeri, Berprestasi.ABSTRACTThis study aims to determine the futsal extracurricular achievement. The method used is descriptive research method. Research subjects are 9 State Senior High Schools in Bengkulu City. Instruments of this research are Observation, Questionnaire, and Documentation. The result of research shows that the percentage of extracurricular futsal development at the level of Upper Secondary School of State of Bengkulu grew by 5 schools 55.55%, not yet developing 4 schools 44.44%. After getting the data percentage then can comparison of extracurricular futsal development at Bengkulu 5: 4 High School level, is growing. Based on data acquisition of futsal estrakurikuler developments at State Senior High School of Bengkulu City should pay attention to good indicators such as competent trainers, good management, facilities, training methods and achievements. So the results of data obtained from nine schools there are 5 schools that have good indicators. While 4 schools stated there has been no visible development of indicators that have not fulfilled the process of supporting the development of extracurricular futsal.Keywords: Development, Extracurricular, Futsal.


Sign in / Sign up

Export Citation Format

Share Document