The three accuracy ranges for oral reading--easy, instructional level, and hard--are familiar to almost everyone who teaches young students just learning to read. It may come as a surprise to learn, then, that no study has yet been conducted with beginning readers to support our well-accepted views about accuracy ranges and their role in reading development. What accuracy range is optimal? Does it really matter if a student reads with less than 90% accuracy? In this article, the authors share what they learned when they explored these questions about oral reading accuracy and student progress.