An Attempt to Improve on Time-lapse Video Recording Methods with Digital Still Camera to Make Teaching Materials for Biological Field in Science Class at Elementary School

ゆっくりと変化する生物現象を教材化するために，デジタルカメラを用いた微速度撮影動画の作成方法の改善を試みた。また，微速度撮影動画のフレームレートや時間圧縮率と小学生にとっての分かりやすさとの関係について調査したところ，フレームレートはあまり影響しないものの，時間圧縮率は動画の分かりやすさにかなり影響を及ぼすことが明らかとなった。We improved on time-lapse video recording methods with digital still camera to make teaching materials of slowly changing biological phenomena for elementary school students. Research of correlation between frame rate and time compressibility of time-lapse video and easiness of understanding the video for elementary school students shows that the difference of fame rates has almost no effect to the easiness, but the difference of time compression ratios affect understandability of twining movement of morning glory’s shoots