First, the video window is dependent upon the parent text window. If the video is being played, this prevents students from scrolling up or down the texts in windows arranged one above the other. These problems could be solved for most monitors if the producers were to make the video window independent of the parent text window or limit the width of each text to 320 pixels. The location of chapter related notes and the text in Chinese characters at the bottom of the page seems inconvenient. Both are written in Chinese characters.
Students can listen to the title of the lesson and watch the video.
At this initial stage, they can simply guess the meaning of the dialogue of the lesson by contextual clues such as gestures and facial expressions. Subsequent listening to the dialog in Sentence mode while watching the video can reinforce the student's comprehension. After having understood the dialogue in Cantonese as a whole, checking the English translations of words and sentences might help the student understand linguistic details. Then the student can watch the video again, this time without reading the text, and try to understand the conversation as much as possible. Once students attain an overall understanding of the dialogue, they are ready for the exercises.