Professor Gilmore is using the strategy of Incorporating Visuals.
What do you mean by Incorporating Visuals?
Visuals play an important role in making any work attractive. It attracts the target audience towards the required work and structure. Visuals helps in faster learning, remembering and are stored in memory for a longer time period.
There is usually around seven types of visuals including
Decorative, representational, mnemonic, organizational, relational, transformational, and interpretive visuals. It can be in the form of picture, chart, or other presentation that appeals to the sense of sight, used in promotion or for illustration or narration
Hence, in this case the professor is incorporating visual strategy.
To know more about Visuals from the given link
https://brainly.com/question/1262098
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