Helping students think about what they know about the topic of upcoming work helps activate their Background Knowledge or reveals gaps. When students ask and answer pre-reading questions, they draw connections to what they already know and understand the purpose for reading a text, ultimately leading to increased comprehension.
From AdLit (2014)
Watch how this sixth grade teacher reviews potential questions to ask before partner reading. By asking students to brainstorm some pre-reading questions, learners are better oriented and equipped to comprehend the chapter.