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Enhancing Content Knowledge Of In-Service Science Teachers Through Model And Modeling, Naheed Perveen, Sadia Muzzafar Bhutta
Enhancing Content Knowledge Of In-Service Science Teachers Through Model And Modeling, Naheed Perveen, Sadia Muzzafar Bhutta
Institute for Educational Development, Karachi
The guiding question for this paper is; how does model and modeling enable student-teachers to develop a conceptual understanding of the cell as a structural and functional unit of living things? A teaching unit ‘The Cell’ was designed in view that models are a major teaching and learning tool for developing scientific thinking, whereas modeling means a process of forming representation. The teaching and learning strategies reported here encapsulated four modeling phases. Firstly, student-teachers modeled historical development of cell through a time line and role play and discussed the evolutionary and tentative nature of science. Secondly, the candy factory analogy …
Taking “Stock” Of Pedagogical Content Knowledge In Science Education, Harcharan Pardhan, Alan Wheeler
Taking “Stock” Of Pedagogical Content Knowledge In Science Education, Harcharan Pardhan, Alan Wheeler
Institute for Educational Development, Karachi
This article focuses on efforts of facilitate the development of MEd science students' conceptual understanding of content, pedagogy and pedagogical content knowledge (PCK). A basic premise of the approach taken was that to teach conceptually, students must learn conceptually. A four-step conceptual process was followed with the participants to help them actively construct knowledge about fundamental science concepts and enhance their confidence and enthusiasm for science teaching. Equivalent forms of an assessment instrument entitled the Science Test of Content Knowledge (STOCK), used as per- and post-performance measures, revealed a significant difference. The article describes the structured activities built into the …