Yuuko Fukazawa

type:Article 本研究は,「GIGAスクール構想」の実現のために「ソフト」面に焦点をあて,デジタル教科書ならではの学びの充実をはかり,将来の学習者用デジタル教科書の有効な利活用も視野に入れつつ,現在配布されている指導者用デジタル教科書を用いた数学と理科の大学及び附属校の授業での利活用を含めたICTを効果的に活用する学習活動や教材化のための素案及び指導者用デジタル教科書を用いた授業実践の分析・考察を行うことを目的とする。 The purposes of this study are the following two points: (1) To focus on the soft wear aspects in order to realize the GIGA school concept and to enhance the learning that only digital textbooks can provide. (2) To analyze and discuss learning activities and teaching materials that effectively utilize ICT, including the use of digital textbooks for teachers in mathematics and science classes at universities and attached schools, as well as classroom practices using digital textbooks for teachers.

Surfaces of KCl crystals irradiated uniformly by scanning of 5 keV beam of electrons collimated with one direction are observed by an atomic force microscope (AFM). The irradiation doses are in the range up to 10¹⁶ cm^-2. The surfaces remain many overlapped terraces of sub-micron with random orientations. They are hard to be associated with the square pits observed in well known layer by layer desorption measurements in the dose range of 10¹⁴ cm^-2. The desorption process is simulated by a model based on the assumption that the low-coordinated sites act as the precursors for desorption. We have introduced parameters into this model to reproduce the oscillating structure of the particle-yields of the layer by layer desorption. The resulting final morphology in the dose range of 10¹⁶ cm^-2 shows that many overlapped terraces are created with random orientations, whose terrace-lengths are small compared with that observed. The morphologies show that the process assumed to reproduce the layer by layer desorption can lead the multi-layer steps on the surface.<br>

これまでに製作してきた十数個の物理教材を同時に展示し，小さな科学館を作った。科学館は本学の大学祭（五月祭・神霜祭）で企画し，ここで行ったアンケートから，教材の評価をし，それぞれの教材について最も有効な活用方法について考察をした。