The purpose of this case study was to understand how students use reading strategies to help them comprehend informational text. Eighteen adolescent, developing readers who participated in a Reading Edge intervention at a suburban junior high school in the northeastern part of Pennsylvania answered interview questions, and 14 students met the criteria to participate in the entire study. Seven adolescents in Grade 9 who did not score proficient on their state tests and seven who scored proficient on the most recent state tests participated in the study. Three research questions developed from the literature guided the study and helped the researcher understand how students used comprehension strategies while reading informational text. Data came from the "Qualitative Reading Inventory-5," scores on past state reading tests, interviews, think-alouds, written summaries, and notes made by students on informational texts. Analysis included descriptions and pattern matching. Triangulation and member checks validated the data. [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://www.proquest.com/en-US/products/dissertations/individuals.shtml.]