In his new book, Leveled Reading, Leveled Lives (2025) renowned reading expert, Dr. Timothy Shanahan, posits that using a student's instructional reading level to teach a child to read is harmful and based on a poor understanding of the science of learning. Is he correct? In this session we examine the empirical evidence about whether teachers should aim at reading levels that are 'just right' for students, or if indeed Shanahan is correct, and use grade-level texts for reading instruction, even if students' error rates are higher and comprehension rates are lower.