스프레드시트를 이용한 지구과학Ⅰ 암석의 절대연대에 대한 교수학습 자료 개발

Abstract

Objectives The purpose of this study is to develop teaching and learning materials including “mathematical thinking and computer use” inquiry function in absolute dating of rocks unit of high school earth science Ⅰ of revision education of 2015. Methods Units and concepts were extracted to utilize mathematical thinking and computer use function, and teaching and learning materials were selected in absolute dating of rocks for five radioactive isotopes. We have selected spreadsheets which are frequently used as learning tools in mathematics and science subjects of computer programs. We have developed teaching and learning materials to analyze achievement standards by analyzing textbooks revised in 2015. Results The results of this study are as follows. We developed a teaching and learning material using spreadsheets as exploratory activities presented in the existing curriculum to help students understand why the radioactive isotopes have constant the half-life. After analyzing five high school Earth Science I textbooks and selecting five commonly included radioactive isotopes, we have developed the teaching and learning materials that can comprehend the absolute age by using the parent element amount (%) of the radioactive isotope and visualize the result in the form of graph and clock. Conclusions All the items were answered positively in the questionnaire results on the usefulness, reliability, appropriateness of the application time and preference of the teaching and learning materials developed for the in-service teachers and the pre-service teachers about the developed teaching and learning materials.