点字自己学習用e-learningシステムの開発

摘要

We developed a self-learning system for Braille (e-learning for Braille) for the people with acquired vision loss. First, we investigated a recognizable mark for each dot of the six of a Braille character. After 33 people with acquired vision loss rated five mark options on a scale of one to five, "+" mark was evaluated most recognizable as a dot in a Braille character on the screen. We used this mark for an e-learning system for Braille which consists of questions and answers. Next, we detected the level of proficiency of the learners by the scores of the system and the questionnaire data. Finally, the present study discusses issues including ones which the people with acquired vision loss face when learning Braille.%今回我々は，中途視覚障害者向けの点字自己学習プログラムである“点字e-learning”を開発したので報告する.まず33名の中途視覚障害者に，5種類の画像の視認性を5段階評価させることで，点字e-learningで用いる視徳性の高い点字の表示法を決定した.次に視認性の評価の高かった「＋」を用いた点字を作成し，「問題提示および解答選択」から構成した点字e-learningを作成した.最後に完成した点字e-learningの点字学習の効果を，習得テストの得点とアンケート調査の解析から明らかにした.本稿では中途視覚障害者の点字学習での課題も含め，議論したい.