Final answer:
The most effective strategy in Phase 3 of Muscle Reading is to highlight key points, take detailed notes, and summarize the text in your own words to ensure deep understanding and critical engagement with the material.
Step-by-step explanation:
After reading a paragraph, an effective strategy to use in Phase 3 of Muscle Reading would be highlighting key points and important information, taking notes on the main ideas and supporting details, and summarizing the main points in your own words. Since simply highlighting text encourages memorization rather than critical reading, it is important to engage with the text more deeply by taking notes and summarizing. This will help in putting the author's ideas in your own words, which fosters a better understanding and the ability to view these ideas as arguments rather than plain facts.