Pre-test will be conducted during the class (two to four questions, in multiple choice question or short question format). The collected data will act as research data to investigate students’ background knowledge on the selected topic.

Teachers instruct students to watch a video from the provided links / website.
Students is required to complete and return the worksheet to their teacher.
Students has to review the video again if they have difficulties on the selected topic or for the sake of enhancing their understanding. 

Teachers have to conduct a post-test with students to check the learning outcome of students after watching the video. The questions in the post-test has simular difficulties as pre-test which could provide a useful data for analytical purpose.