Critical literacy is an appropriate learning outcome for social studies courses because it has the potential to teach students how to critically evaluate sources of information relevant to historical texts and current news media. The purpose of this qualitative case study is to examine the process through which students learned to apply critical literacy strategies while completing an end-of-unit research project in tenth grade AP world history. This study looks at student and teacher interviews to examine how students use critical literacy approaches and perspectives to analyze texts. As a result of this study it was determined that: (1) students at the elite private school had limited experience with source evaluation and critical literacy prior to this research project, (2) critical literacy served as an effective evaluation tool for reliability and bias for some students, (3) certain students experienced challenges in using critical literacy as an evaluation tool, and (4) students believed that critical literacy would benefit them personally and academically. Results include implications for instructors who wish to teach critical literacy and source evaluation in this information age.