@article{article_330317, title={Knowledge Levels of Pre-Service Science Teachers on Radioactivity}, journal={Journal of the Turkish Chemical Society Section C: Chemical Education}, volume={1}, pages={165–190}, year={2016}, author={Molu, Zehra and Kahyaoğlu, Hülya and Köksal, Ela Ayşe}, keywords={Radioactivity,pre-service science teachers,misconception}, abstract={<p> <span style="font-size:10pt;font-family:Verdana, sans-serif;font-weight:normal;" lang="en-gb" xml:lang="en-gb">This study aims to determine the knowledge levels of
pre-service science teachers about radioactivity. A knowledge test was
administered to 56 pre-service science teachers participated in the General
Chemistry I course in the fall semester of 2014-15 academic year. Papers
derived from the pre-service science teachers were read and evaluated, and the
responses were classified as “accurate", "misconception",
"wrong" and "empty" categories for open-ended questions and
the responses to the multiple-choice questions were classified as
"right" and "wrong". The pre-service science teachers’ correct
response rates were between 9 % (definition of “nuclear radiation” concept, question
15) and 86 % (radioactivity uses, question 14) in open-ended questions whereas
in multiple choice questions the ratio of correct answers ranged from 5 %
(concept definition and nuclear reactions, questions 21, 23 and 33) to 98 %
(sample of concept, question 20). <span>  </span>Students
hold misconceptions on the radioactivity, warning picture, nuclear power plant
(questions 1, 13, and 16); isotopes (question 4); natural and
artificial nucleus reaction (question 6); age of the rocks (question 8); atomic
bomb (question 10); hydrogen bomb (question 11) and core irradiation (question
15). </span> </p> <p> <br /> </p>}, number={1}, publisher={Türkiye Kimya Derneği}