With this T4T tutorial, students assess whether or not sources of information are reliable. They develop an understanding of the importance of learning to identify and assess the most credible sources of information for a research topic or question. This tutorial includes instructional suggestions for teachers (introducing the strategy, practicing the strategy, reinforcing the strategy, applying the strategy to everyday teaching, and assessing use of the strategy) and resources for students (introductory activities, data charts, student guide and self-assessment rubric).