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Direct linkKassahun Dejene Belayneh; Woldie Belachew – Cogent Education, 2024
The purpose of this study was to determine the effect of topic-specific pedagogical content knowledge-based instruction on grade 11 students' achievement in chemical kinetics and equilibrium. A quasi-experimental research design with a 4 × 2 * 3 pre-test and post-test control group was employed on Grade 11 chemistry students in Addis Ababa…
Descriptors: Kinetics, Secondary School Students, Scientific Concepts, Teaching Methods
Download full textBelayneh, Kassahun Dejene; Belachew, Woldie – Science Education International, 2023
The goal of this study was to assess students' level of conceptual understanding of chemical kinetics and equilibrium using topic-specific pedagogical content knowledge (TSPCK)-based instruction in chemistry grade 11 students. The research was a mixed approach that involved 159 grade 11 chemistry class students from Addis Ababa administrative…
Descriptors: Chemistry, Grade 11, Science Instruction, Kinetics
Students' Visualisation of Chemical Reactions--Insights into the Particle Model and the Atomic Model
Cheng, Maurice M. W. – Chemistry Education Research and Practice, 2018
This paper reports on an interview study of 18 Grade 10-12 students' model-based reasoning of a chemical reaction: the reaction of magnesium and oxygen at the submicro level. It has been proposed that chemical reactions can be conceptualised using two models: (i) the "particle model," in which a reaction is regarded as the simple…
Descriptors: Visualization, Chemistry, Science Instruction, Grade 10
Investigating High-School Chemical Kinetics: The Greek Chemistry Textbook and Students' Difficulties
Gegios, Theodoros; Salta, Katerina; Koinis, Spyros – Chemistry Education Research and Practice, 2017
In this study we present an analysis of how the structure and content of the Greek school textbook approaches the concepts of chemical kinetics, and an investigation of the difficulties that 11th grade Greek students face regarding these concepts. Based on the structure and content of the Greek textbook, a tool was developed and applied to…
Descriptors: Foreign Countries, Textbooks, Science Instruction, Chemistry
Bostan Sarioglan, Ayberk; Kucukozer, Huseyin – International Journal of Education in Mathematics, Science and Technology, 2017
The aim of this study is to analyze the effect of meaning making based instruction regarding angular momentum conservation on the change of two 11th grade students' alternative ideas they have before instruction. Case study model is used in the research. Conceptual test (implemented before the instruction, right after the instruction and fifteen…
Descriptors: Attitude Change, Grade 11, Case Studies, Scientific Concepts
