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Bohloko, 'Matau; Makatjane, Tiisetso J.; George, Mosotho J.; Mokuku, Tšepo – African Journal of Research in Mathematics, Science and Technology Education, 2019
This study, based on the theory of Technological Pedagogical Content Knowledge investigated the effectiveness of introducing open source YouTube videos in the teaching and learning of the Chemistry topic 'Group Properties' at a high school in Lesotho. A quasi-experimental design was used for two conveniently selected Form D classes; one class used…
Descriptors: Instructional Effectiveness, Chemistry, Science Instruction, Secondary School Science
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Kolobe, Lebala; Hobden, Paul – African Journal of Research in Mathematics, Science and Technology Education, 2019
In an ideal instructional context, one would expect the components (teacher, content and instructional strategy) to operate in harmony, in tandem and in a complementary manner. When these components are not in harmony, they are said to be in a state of 'instructional contextual contestation'. The components compete rather than complement each…
Descriptors: Chemistry, Science Instruction, Fundamental Concepts, Scientific Concepts
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Sibanda, Doras – African Journal of Research in Mathematics, Science and Technology Education, 2018
The purpose of this study was to explore whether chemistry lesson sequences can indicate the level of teachers' pedagogical content knowledge (PCK). The sequencing of lessons for teaching chemical bonding is taken as the case for this study. The correct sequencing of concepts in teaching chemical bonding is key to learners' conceptual…
Descriptors: Teaching Methods, Chemistry, Science Instruction, Secondary School Science
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Mensah, Alfred; Morabe, Olebogeng Nicodimus – African Journal of Research in Mathematics, Science and Technology Education, 2018
Previous research on students' difficulties in learning chemical equilibrium has shown that students hold misconceptions about this topic, and this often results in unintended learning. However, recent developments in human learning from the behavioural sciences perspective indicate that students' difficulties in learning are much more than…
Descriptors: Foreign Countries, Grade 12, Chemistry, Problem Solving
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Mumba, Frackson; Banda, Asiana; Chabalengula, Vivien M. – African Journal of Research in Mathematics, Science and Technology Education, 2018
This study in Zambia examined 66 junior high school pre-service science teachers' familiarity with, conceptual understanding of and levels of interest in learning more about electrochemistry concepts. Data were collected using the Familiarity with Electrochemistry Questionnaire, the Conceptual Understanding of Electrochemistry Test and the…
Descriptors: Secondary School Teachers, Preservice Teachers, Chemistry, Secondary School Science
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Koopman, Oscar – African Journal of Research in Mathematics, Science and Technology Education, 2017
This article aims to investigate how science teachers engaged with the macroscopic, sub-microscopic and symbolic levels of representations in their Chemistry teaching. Data were collected in Limpopo province in South Africa from 15 "lead" teachers and this paper reports on five lessons presented by the teachers during professional…
Descriptors: Foreign Countries, Science Teachers, Chemistry, Faculty Development
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Sibanda, Doras; Hobden, Paul – African Journal of Research in Mathematics, Science and Technology Education, 2015
The current study seeks to examine how teachers plan teaching sequences to teach chemical bonding in the senior secondary phase of schooling. The study employs a learning demand tool as interpretive framework. A mixed method was used to guide the collection of data. Data were collected through a survey instrument with 227 practising physical…
Descriptors: Chemistry, Lesson Plans, Sequential Approach, Secondary School Science