Science teachers’ topic specific pedagogical content knowledge related to human body systems

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2022-2-10

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Kınık, Elif

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This study investigated experienced science teachers’ pedagogical content knowledge (PCK) and subject matter knowledge (SMK) about human body systems (HBS) (digestive, circulatory, respiratory, urinary system). Two female experienced science teachers from the same private school participated in the study. A case study, a type of qualitative methodology, is used as a research design. Data were collected from semi-structured pre-interviews including Content Representation (CoRe) questions, VNOS-C questionnaire, HBS Questions, classroom observations, teachers’ documents, and post-interview. Results of the study show that participants were knowledgeable about the digestive, circulatory, respiratory, and urinary systems. They understand the human body system as a complex system by referring to integrity and cooperation among organs and systems that constitute a human body. Moreover, participant teachers had inconsistent explanations about tentative NOS by mentioning laws are unchangeable. They also did not implement NOS in the context of human body systems. Results of the PCK revealed that participants’ central goals were subject matter goals and schooling goals. Moreover, they were knowledgeable about objectives and the place of the HBS in the science curriculum as well horizontal and vertical relationships. However, they went beyond the science curriculum by mentioning limitations. They were aware of the requirements of students’ learning. Participants used analogies, drawing, daily life examples, and modeling as topicspecific strategies. Teachers preferred traditional assessment methods and benefited from both formative and summative assessments. Eventually, a professional development program including NOS implementation is recommended. This program should include NOS objectives, topic-specific instructional and assessment strategies regarding NOS regarding HBS.

Subject Keywords

Pedagogical Content Knowledge, Human Body Systems, Complex System Understanding, Science Education, Experienced Science Teachers

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https://hdl.handle.net/11511/96388

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

E. Kınık, “Science teachers’ topic specific pedagogical content knowledge related to human body systems,” M.S. - Master of Science, Middle East Technical University, 2022.