변성암 분류 과정에서 정보 제공 정도에 따른 지구과학 교사들의 시선 특성과 암석 판별의 정확성 분석

Abstract

Objectives The purposes of this study is to find out whether there is a difference in earth science teachers’ gaze characteristics and accuracy of rock identification according to the level of information provided in the metamorphic rock classification process.
 Methods To this end, 6 samples of metamorphic rocks (phyllite, slate, gneiss, hornfels, marble, and schist) were selected, and by using them, tasks related to metamorphic rock classification with different levels of information were developed. Afterwards, the developed task was applied to 21 earth science teachers, and quantitative data on gaze movement in the process of classifying metamorphic rock was collected and analyzed using a eye tracker (Tobii Pro Glasses 2 model).
 Results In the process of classifying metamorphic rocks, earth science teachers tended to focus too much on specific areas or unique features of the rock surface rather than the overall characteristics of the rock, and tended to classify rocks based on the limited information collected in this way. Second, although there are some differences depending on the type of rock, the more specific the information provided, the more the teachers’ total duration of fixation and number of fixation tended to decrease. Third, as the information provided was more specific, the accuracy of rock identification increased, and the types of rocks mentioned tended to decrease. Fourth, according to the level of information provided by earth science teachers, the most accurate pattern for classifying rocks was ‘wrong answer-wrong answer-correct answer’.
 Conclusions Through the result of this study, it was confirmed that it is necessary to provide a systematic manual on matters to be paid attention to when observing the characteristics of metamorphic rocks, and to reduce the cognitive loads of learners through effective rock arrangement enhance understanding of metamorphic rocks classification.