The purpose of this study was to survey scientific concepts understanding of grade 11th students. The sample was 116 students of academic year 2017 from school in Thailand that selected by purposive sampling. The instrument was electricity conceptual understanding test consisting of 15 questions for pretest. Scientific concept understanding are divided in to 5 levels 1) Complete Understanding : CU, 2) Partial Understanding : PU, 3) Partial Understanding with Specific Alternative Conception : PS, 4) Alternative Conception : AC, 5) No Understanding : NU. The results showed percentage of CU and PU were only 4.36 and 4.20 but percentage of PU PS and NU were 7.87, 12.47 and 71.10 respectively. In addition the results indicated that most scientific concept understanding of grade 11th students was low level.
Chanapong Khumtha, Mahasarakham University, Thailand
Stream: Education for sustainable development
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