This study examined the impact of Guided Reading instruction on elementary students' ability to read with fluency and accuracy. A one-way analysis of covariance with pre and posttest design was performed and applied to determine the impact of Guided Reading instruction on elementary students' reading fluency and accuracy. The sample of subjects included 108 elementary students in the fourth and fifth grade. To examine the impact of Guided Reading instruction, students' Developmental Reading Assessment (DRA2) pre and posttest scores to include words per minute and accuracy percentage were compared. The analyses revealed proportionate differences in students' fluency and accuracy. As direct implementation of Guided Reading was applied to student instruction, a significant difference was noted in the words per minute students read. However, as direct implementation of Guided Reading instruction was applied to student instruction, a significant difference was not noted in the accuracy rate of words per minute read. This research of Guided Reading instruction affords educators a multi-modality instructional strategy to impact the reading formation and foundation of elementary students. Recommendations to compliment this study to further benefit reading instruction could include the application of Guided Reading as it relates to and impacts student reading comprehension. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]