Development of teaching materials and methods using uncontained radioactive isotopes for education in junior high school and/or high school

开发使用不含放射性同位素的初中和/或高中教育教材和方法

• 批准号: 22500822
• 负责人: SATOH Hiroyuki
• 金额: $ 2.83万
• 依托单位: Toho University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22500822/
• 关键词: 自然科学教育; 放射線教育; 非密封放射性同位元素; 教材開発; シャルガフの法則; ハーシー・チェイスの実験; 放射性同位元素; 放射線; β線測定; 簡易測定器

After the revision of the law, certain amounts of uncontained radio isotopes (RI) became available for student practice at junior high and/or high schools. In this study, we developed several teaching materials and teaching methods using RI for student practices, e.g., determination of genetic substance, verification of the central dogma theory, verification of rules of base composition in DNA, relationship between atomic number of shielding materials and transparency of gamma ray, relationship between distance from RI and effective dosage, determination of radioactivity of cesium in soil. We evaluated performance of inexpensive radiation detectors for the usage in these schools.

法律修订后，一定量的未含放射性同位素（RI）可供初中和（或）高中学生使用。在本研究中，我们开发了一些利用RI进行学生实践的教材和教学方法，如遗传物质的测定、中心教条理论的验证、DNA碱基组成规律的验证、屏蔽材料的原子序数与伽马射线透明度的关系、与RI的距离与有效剂量的关系、土壤中铯放射性的测定等。我们评估了这些学校使用的廉价辐射探测器的性能。