子計畫三以國語文教科書為例，發展數位教學與學習材料之建構原則，本研發將數位時代中教學者與學習者所需的新素養、國語文學科知識內容、教學原理、學習心理學等要素融入國語文數位教科書之設計，期能提供教學現場與研發單位基本研發原則之參照。本計畫第一期透過文獻回顧、專家諮詢、研發設計完成研發規劃，提供國語文數位教科書設計原則建議。第二期建構數位教科書素材與版面規劃之雛形設計，並據設計進行教學實徵研究。

　　The study aims to develop the design principle of digital textbook in language subject base on empirical finding in reading psychology, new literacy, and self-direct learning. In the first phase, a design principle will be developed via literature review, deep interview and classroom observation. In the second phase, a digital textbook template will be designed based on Subject 1 and an experimental deign, preliminary data analysis and result will be developed to valid the learning effect of the learners. Refine the suggestions for guidelines of designing digital textbooks will be revealed as well.