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Development and Application of a Two-Tier Multiple Choice Diagnostic Instrument To Assess High School Students' Understanding of Inorganic Chemistry Qualitative Analysis.
Peer reviewed Peer reviewed
Tan, Kim Chwee Daniel; Goh, Ngoh Khang; Chia, Lian Sai; Treagust, David F. – Journal of Research in Science Teaching, 2002
Describes the development and application of a two-tier multiple choice diagnostic instrument to assess high school students' understanding of inorganic chemistry qualitative analysis. Shows that the Grade 10 students had difficulty understanding the reactions involved in the identification of cations and anions, for example, double decomposition…
Descriptors: Chemical Analysis, Chemical Reactions, Grade 10, Inorganic Chemistry
Major Sources of Difficulty in Students' Understanding of Basic Inorganic Qualitative Analysis
Peer reviewed Peer reviewed
Tan, Kim Chwee Daniel; Goh, Ngoh Khang; Chia, Lian Sai; Treagust, David F. – Journal of Chemical Education, 2004
To assess the major sources of students' difficulties in qualitative analysis (QA), 51 grade 10 students (15 to 17 year old) from three secondary schools were interviewed. The results found that the major sources of students' difficulties in understanding QA are formation of precipitates, formation of complex salts and addition of acid.
Descriptors: Grade 10, Secondary Schools, Inorganic Chemistry, High School Students