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Direct linkHunegnaw, Tadesse; Melesse, Solomon – Cogent Education, 2023
This study evaluates the experimental tasks of the Ethiopian grade 12 chemistry textbook vis-à-vis coverage of the essential components of science process skills (SPSs) using content analysis. All the procedures in an experiment were analyzed using rubrics of the inquiry-based task analysis inventory (ITAI) instrument. This instrument was based on…
Descriptors: Foreign Countries, Grade 12, Science Instruction, Chemistry
A. Lynn Stephens – Journal of Research in Science Teaching, 2024
It is widely recognized that we need to prepare students to think with data. This study investigates student interactions with digital data graphs and seeks to identify what might prompt them to shift toward using their graphs as thinking tools in the authentic activity of doing science. Drawing from video screencast data of three small groups…
Descriptors: Graphs, Data, Interaction, Electronic Learning
Meelapsom, Rattapol; Rattanakaroonjit, Waranphat; Prakobkij, Akarapong; Malahom, Nutthaporn; Supasorn, Saksri; Ruangchai, Sukhum; Jarujamrus, Purim – Journal of Chemical Education, 2022
The present work describes a simple hands-on experiment kit for colorimetric quantification of ferric (III) ion (Fe[superscript 3+]) in an aqueous medium using anthocyanin extracted from "Ruellia tuberosa" L. as a green indicator. The extraction of a high amount of anthocyanin was easily accomplished by using only hot water instead of an…
Descriptors: Science Instruction, Chemistry, Hands on Science, Science Experiments
