Lessons Lesson to improve reading comprehension by determining the main idea of a passage. Taken from Effective Instruction for Struggling Readers: The Administrator's Role in Supporting Research-Based Practices. Check_Main_Idea.pdfCategory: InstructionReading InstructionInterventionReading InterventionRelated Resources: Booklets Effective Upper-Elementary Interventions for Students with Reading Difficulties: Vocabulary and Comprehension Booklet with step-by-step lessons for teaching vocabulary and comprehension. Podcasts Comprehension: Get the Gist Description of a strategy for teaching students how to identify a text’s main ideas. Podcasts Comprehension: Summarizing Text Description of a strategy for teaching students how to write a summary.