There are different kinds of knowledge in the cognitive perspective. For example, Marcelo is using knowledge that reminds him to focus his attention, block out distractions, and think about what he is reading if he wants to understand any of his high school subjects. What kind of knowledge is Marcelo using?

General Knowledge

Explanation:

General knowledge, an essential aspect of crystallized intelligence associated with intelligence gained from experience is information that has been accumulated over time through combination of  various mediums   it includes specialized learning that is obtained with extensive training and information through different  sources.

The knowledge Marcelo is using that reminds him to focus his attention, block out distractions, and think about what he is reading if he wants to understand any of his high school subjects is a General Knowledge  which he must have acquired from experience accumulated over time to help him read better.