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高精細動画を用いた多地点接続による中学校間日韓遠隔授業の実践と評価(<特集>実践段階のeラーニング)


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Title: 高精細動画を用いた多地点接続による中学校間日韓遠隔授業の実践と評価(<特集>実践段階のeラーニング)
Other Titles: Practice and Evaluation about Distance Classes using High Quality Video/Audio Stream with Multi Point Connection between Japanese and Korean Middle Schools (<Special Issue>Studies on Practical Use of e-Learning)
Authors: 藤木, 卓 / 森田, 裕介 / 全, 柄徳 / 李, 相秀 / 渡辺, 健次 / 下川, 俊彦 / 柳生, 大輔 / 上薗, 恒太郎 / 中村, 千秋
Authors (alternative): Fujiki, Takashi / Morita, Yusuke / Jun, Byungdug / Lee, Sangsoo / Watanabe, Kenzi / Shimokawa, Toshihiko / Yagyu, Daisuke / Kamizono, Kohtaro / Nakamura, Chiaki
Issue Date: 20-Feb-2006
Publisher: 日本教育工学会
Citation: 日本教育工学会論文誌. 2006, 29(3), p.395-404
Abstract: 日韓の中学校間において生徒同士の討論を含む授業を行うために,インターネット上で高精細動画の伝送が可能なツールを用いて,2箇所の授業会場と司会・通訳会場の3地点を結ぶ遠隔授業を実践した.この授業では,交流授業の後「海を越えてエネルギの未来を考えよう」をテーマに,電気エネルギの利用や夢の発電に関する討論を行った.そして,授業及びトラフィックと伝送画質,対話支援環境,遅延の影響を検討し,以下の結論を得た.日韓間の中学校において,高精細動画と翻訳チャット,Web-GIS教材を用いた遠隔授業が実践できた.主観評価から,学習者,教師,参観学生にとって有用性の高い授業であったことが分かった.トラフィック評価から,福岡-長崎間では安定した通信ができたが,福岡-光州間では十分な帯域が確保できなかった.伝送画質評価から,福岡-長崎間の対面型の画質はPQR2.4~3.4,福岡-光州間はPQR9.1~13.5を示した.翻訳チャットやWeb-GIS教材の利用は,授業中の対話支援に有用であった.遅延の影響は,通訳や発言調整により目立たなかった. / In this paper, distance classes were practiced in order to realize a collaborative class which included discussions between middle schools of Japan and South Korea. For the sake of these classes, three venues which were two points for each students and the chair man/translator's point were connected using DVTS which enabled high quality video/audio transmission. In these classes, after the exchange type class the collaborative class was executed through the discussion about using the electric power energy and dreaming electric power generation as the theme "Let's think about the future energy beyond the sea". Then the collaborative class, the network traffic, the quality of transmitted movie, the environment for assisting communication and the transmission delay were evaluated. Consequently, the following results were obtained. Firstly, distance class was practiced using the high quality movie and the translation chat system, the Web-GIS material between middle schools of Japan and South Korea. About the subjective evaluation, this class work was obtained high score of the availability by learners and teachers, observation students. Then between Fukuoka and Nagasaki, stable connection was enabled but the network band width was not acquired enough between Fukuoka and Gwangju. About picture quality evaluation for the face-to-face type, the value of PQR was from 2.4 to 3.4 between Fukuoka and Nagasaki, and the value of PQR was from 9.1 to 13.5 between Fukuoka and Gwangju. Additionally, the translation chat system and the Web-GIS material were effective for this class. Lastly, influence of the transmission delay was without particular distinction because of using the translator and the arrangement of speaking.
Keywords: DVTS / 遠隔授業 / 日韓 / 中学校 / 翻訳チャット / Web-GIS / PQR / DVTS (DIGITAL VIDEO TRANSPORT SYSTEM) / DISTANCE LEARNING / JAPAN AND KOREA / MIDDLE SCHOOL / TRANSLATION CHAT / WEB-GIS / PQR (PICTURE QUALITY RATING)
URI: http://hdl.handle.net/10069/16820
ISSN: 13498290
Relational Links: http://ci.nii.ac.jp/naid/110004705025/
Rights: 日本教育工学会 / 本文データは学協会の許諾に基づきCiNiiから複製したものである
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/16820

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