Build your students' understanding of the author's purpose with this set of Edupress reading comprehension flash cards. Ideal for test prep, centers, or independent studying, this set of 54 cards provide an easy way to help students develop their understanding of the main idea. Each card features a leveled passage followed by a multiple-choice question that asks students to assess the main idea. Reading Level 2.0-3.5. Red Level. Grades 2-4.