本文探討國小教師使用電子教科書之情形，分析教師在不同教學活動中如何運用各項基本工具，並從教師教學角度，評估國內目前電子教科書功能設計的優、缺點，以及教學的適用性。本研究首先進行相關文獻探討、電子教科書編輯人員焦點座談，以及電子教科書內容分析，瞭解目前國內電子教科書工具功能的發展、設計特性，以及電子教科書教學之相關研究結果，並據此編製國內電子教科書之三大基本工具功能調查表：「編輯工具」、「輔助工具」、及「移動控制工具」教師教學使用意見調查表。接著針對電子教科書使用經驗豐富的教師進行意見調查，分析教師在引起動機教學、講述教學、提問與討論、練習與作業指導和分組活動教學等五種常見教學歷程中，運用電子教科書「編輯工具」、「輔助工具」、及「移動控制工具」的情形，以及教師對於各項基本工具功能之教學適用性評估。最後，本文根據研究重結果，提出具體建議，供教科書編輯者、教育相關主管單位，以及教師教學之參考。

This study explored the e-textbooks used by teachers in elementary schools in Taiwan for how they used the built-in tools in different instructional activities, their perspectives towards evaluating the pros, cons, and instructional functions of e-textbooks. First, a group interview was conducted with the e-textbook editors. From which, some remarkable patterns about the e-textbook got drwan, such as the current functional development, the possible design characteristics, and the relevant research in its instruction. Among them, three major functions for the basic tools were summerized: “editing tools,” “support tools,” and “movement control tools.” In the surveys revealing opinions from experienced-teahers on their instructional usage and how they used the three tools, five common instructional processes were proceeded, such as warm-up, didactic instruction, question and discussion, practice and homework guidance, and group activity. Finally, some suggestions were made for further reference for textbook editors, educational authorities, and teachers in their e-textbook instruction.