Visualizing learners’ level of understanding of lecture using digital text book system

This paper proposes a system to define and visualize learners’ level of understanding of lecture contents based on learning data obtained from the digital textbook system named SEA (Smart E-Textbook Application) with a quiz function. By feedbacking the visualization results to learners, learners can grasp information that should be reviewed which unit in the lecture. Thereby, the learners can improve their level of understanding of the lecture efficiently and effectively. An evaluation experiment was conducted to investigate whether our proposed system can enhance learning effectiveness and learners’ level of understanding of lecture. As a result, it found our proposed system can enhance learners’ level of understanding of lecture and learning effectiveness.