Which type of evidence is most heavily relied upon in the author’s argument?

The argument primarily relies on concrete examples of local engagements, which serve to illustrate and reinforce the author's points about the benefits and effectiveness of certain educational practices. By providing specific instances where these engagements occur, the author lends tangible support to their claims, making the argument more relatable and easier for readers to understand. Concrete examples often allow readers to visualize the argument in action, enhancing their impression of its validity.

In educational discussions, concrete examples can effectively demonstrate how theoretical concepts manifest in real-world scenarios, offering a practical perspective that statistics or personal anecdotes alone may not provide. This method of supporting an argument helps to ground abstract ideas in reality, making them more compelling and accessible to a diverse audience.