<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Gomes Miranda, A. C.</style></author><author><style face="normal" font="default" size="100%">Maurícius Selvero Pazinato</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">CONTRIBUTIONS OF LAKATOSIAN THEORY TO THE EVALUATION OF EXPLANATORY MODELS OF INTERMOLECULAR FORCES MADE BY UPPER-SECONDARY SCHOOL STUDENTS</style></title><secondary-title><style face="normal" font="default" size="100%">Problems of Education in the 21st Century</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">chemistry teaching</style></keyword><keyword><style  face="normal" font="default" size="100%">London force and dipole-dipole interactions</style></keyword><keyword><style  face="normal" font="default" size="100%">progressive transition</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2023</style></year><pub-dates><date><style  face="normal" font="default" size="100%">April/2023</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://oaji.net/articles/2023/457-1683097353.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">81</style></volume><pages><style face="normal" font="default" size="100%">Continuous</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The focus of the present study is the learning processes of concepts related to hydrogen bonds, which were developed using a didactic sequence (DS). Based on the perspective of Imre Lakatos, it was observed whether the explanatory models created by upper-secondary students form progressive transition sequences, which are similar to what Lakatos, in his text The History of Science, calls a “problem” that increases the explanatory/heuristic power of the model. To evaluate the evolution of these models, which generally consist of progressive transitions, four phases were developed: 1) the categorization of answers obtained in the DS in Realist, Empiricist or Rationalist zones, as well as an attribution of scores; 2) the determination of a score range for said zones; 3) hierarchical cluster analysis (HCA) and 4) an analysis of the progressive transition of the explanatory models. A continuous review of the ideas expressed by the students during their learning of the subject revealed that a significant share of students progressed conceptually. In a general way, it can be said that the activities developed in the DS contributed substantially to the progressive transition of the explanatory models made by most students. Furthermore, the approach of the DS toward the subject of hydrogen bonds allowed the students to interpret the phenomena studied using their knowledge of Chemistry. </style></abstract><issue><style face="normal" font="default" size="100%">2</style></issue><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">176-187</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Rolién J. V. Cirilo</style></author><author><style face="normal" font="default" size="100%">Elaine A. Colagrande</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">INSTRUMENTS TO ACCESS THE CHEMISTRY PEDAGOGICAL CONTENT KNOWLEDGE: AN INTEGRATIVE REVIEW</style></title><secondary-title><style face="normal" font="default" size="100%">Problems of Education in the 21st Century</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">chemistry teaching</style></keyword><keyword><style  face="normal" font="default" size="100%">data collection instruments</style></keyword><keyword><style  face="normal" font="default" size="100%">professional knowledge</style></keyword><keyword><style  face="normal" font="default" size="100%">teacher training</style></keyword><keyword><style  face="normal" font="default" size="100%">teacher’s knowledge</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style  face="normal" font="default" size="100%">June/2021</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://oaji.net/articles/2021/457-1623676595.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">79</style></volume><pages><style face="normal" font="default" size="100%">Continuous</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">This research presents an integrative review about the methodological procedures adopted in the research of the Chemistry PCK, with the aim of identifying the data collection instruments used to explain the PCK in this field, seeking to observe its frequency of use and also contribute to the advancement of knowledge established by previous reviews. 89 articles published in magazines well evaluated by CAPES were selected, indexed to the Scopus (Elsevier) database. The treatment of the data was based on the technique of content analysis, resulting in six categories constructed a posteriori: a) period of publications; b) country of origin of the research; c) relationship to a specific topic; d) the teaching experience of the target audience; e) research approach and data collection instruments; and f) the use of PCK models as a theoretical framework. The results suggest a methodological predominance of a qualitative nature, with interviews, field diaries, observation of the practice, and questionnaires some of the most used instruments. Besides, a trend related to the specification of topics in the Chemistry discipline can be identified, as well as the lack of clarity regarding the variety of PCK models present in the literature and the failure to adopt these as a theoretical basis in most of the research studies analysed. There is also an express need to investigate the PCK of Chemistry teachers in practice in higher education since the results reinforce the scarcity of papers for this specific audience.</style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">381-396</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Valéria C. Santos</style></author><author><style face="normal" font="default" size="100%">Agnaldo Arroio</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">CHARACTERIZATION OF THE DEVELOPMENT OF A COMMUNITY OF PRACTICE TO SUPPORT PRE-SERVICE CHEMISTRY TEACHERS</style></title><secondary-title><style face="normal" font="default" size="100%">Problems of Education in the 21st Century</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">chemistry teaching</style></keyword><keyword><style  face="normal" font="default" size="100%">community of practice</style></keyword><keyword><style  face="normal" font="default" size="100%">pre-service teacher training</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2013</style></year><pub-dates><date><style  face="normal" font="default" size="100%">December/2013</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://oaji.net/articles/2014/457-1420057005.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">57</style></volume><pages><style face="normal" font="default" size="100%">Discontinuous</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The concept of communities of practice can be used in different contexts, included the educational context. The development of communities of practice where pre-service teachers work together, refine their practices and learn is a good training for these future teachers.  Since communities of practice help teachers learn about teaching and improve their practices, this study aim to characterize the project PIBID of chemistry carried out at the University of São Paulo as a community of practice. On the first half of 2013 the PIBID project included 12 pre-service teachers who attended weekly meetings. These meetings consisted of theoretical training about the use of visual tools in teaching and other concepts about education and meetings to plan activities and classes about topics of chemistry to be applied in a public school at the city of São Paulo, Brazil. During these meetings was possible to notice that the pre-service teachers were engaged in a community of practice, demonstrating the three characteristics emphasized by Wenger (2008): mutual engagement, joint enterprise, and a shared repertoire. Thus the project PIBID of chemistry could be characterized as a community of practice. Furthermore, it was noticed that the community helps in the training of pre-service teachers, since it is providing support to them learn about teaching in practice and implement their knowledge. </style></abstract><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">124-132</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Johannes  Pernaa</style></author><author><style face="normal" font="default" size="100%">Maija  Aksela</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">CHEMISTRY TEACHERS' AND STUDENTS' PERCEPTIONS OF PRACTICAL WORK THROUGH DIFFERENT ICT LEARNING ENVIRONMENTS</style></title><secondary-title><style face="normal" font="default" size="100%">Problems of Education in the 21st Century </style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">chemistry teaching</style></keyword><keyword><style  face="normal" font="default" size="100%">information and communications technology</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">November/2009</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://oaji.net/articles/2014/457-1396707455.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">16</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">This paper presents the first phase of a design research, where four practical work activities within ICT learning environments (concept maps, molecular modeling, animations and videos) were created and evaluated. Materials were designed carefully after the orientation of research literature and Finnish chemistry curriculum by 21 chemistry student teachers during their M.Sc. chemistry education course. Designed materials were peer evaluated before they were presented to 27 teachers and students who made their external evaluation. Research questions of the research were i) What kind of need is there for creating learning environments that connect practical chemistry and ICT?, ii) What kind of features does meaningful practical work through different ICT -learning environments contain? And iii) What kind of effect does practical work through ICT have on chemistry learning according to chemistry teachers and students? Data was gathered by observing and using questionnaires. This study shows that the need for meaningful practical work through ICT -learning environments is substantial. According to the designers and respondents, meaningful characteristics of practical working through ICT are i) cooperative, ii) constructivist, iii) motivating, and iv) time saving and safe, In addition, they should visualize chemical phenomenon and processes at macro and molecular levels. Studied teachers found that ICT gives i) important aid to learning and teaching practical work, ii) it arouses interest and iii) it develops research skills. At the second phase of this research, activities will be developed to more contextual and inquiry-based form and the effect on learning will be examined thoroughly with comprehensive school students. </style></abstract><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">80-88</style></section></record></records></xml>