“Evaluation” is the most abstract and complex level of critical thinking. To evaluate or make judgments, students must accept a given criteria as the standard before being able to come to an accurate conclusion. The 25 lessons in this unit provide practice with personal values, accuracy of facts, recognizing bias, and using reference sources. Example: “You want to go to a summer camp. What makes a good one?” The sequential activities featured here are sure to develop critical thinking skills.