What is the primary benefit of the strategy mentioned in the text for Zach's reading abilities?

The primary benefit of the strategy mentioned in the text for Zach's reading abilities is enhancing his understanding of academic vocabulary. This focus on vocabulary expansion is crucial because academic vocabulary is often more complex and less familiar to students than everyday language. Enhancing Zach's understanding in this area can lead to improved comprehension of texts across various subjects, increased ability to engage with more challenging material, and greater overall literacy skills. By equipping him with a stronger vocabulary foundation, the strategy supports his ability to decode and make sense of texts, which is essential for academic success.

Other aspects, like memorization, reading speed, or genre preference, while potentially relevant, do not directly contribute to the comprehensive understanding of texts, particularly in an academic context where vocabulary plays a significant role.