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Download full textNikolaos Zarkadis; George Papageorgiou; Angelos Markos – Science Education International, 2024
The study investigates secondary students' understanding of "orbital" and "electron cloud" concepts in different quantum contexts (for values of the ?principal quantum number n = 1 and n = 2) on the basis of their verbal and pictorial representations, evaluating also their consistency. Participants, which were 192 12th-grade…
Descriptors: Science Instruction, Teaching Methods, Scientific Concepts, Concept Formation
Stephen Adofo; Sirpa Kärkkäinen; Tuula Keinonen – Science Education International, 2024
This study examined integrated science questions of the Basic Education Certificate Examination (BECE) in Ghana at the end of grade 9. Results from BECE determine which senior high school a student can attend. Science questions (n = 751) over the span of eight years were analyzed in this study and viewed under the lens of the revised Bloom's…
Descriptors: Secondary School Science, Science Tests, Foreign Countries, Grade 9
