Showing pictures, reading phrases or simply deriving equations is somewhat vague or ambiguous for sometimes to our students most especially when they cannot visualize the relation of what we wanted to share or teach them. Even in a good presentation, when a presenter could not relay the topic from its context the objective will not be achieved.
An online tool that I found in the net that somewhat can help solve this scenario is the use of Mindmeister. A tool used to create a concept map.
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