2.1 ANALYZING PARAGRAPHS FOR THE MAIN IDEA AND ITS DEVELOPMENT 2.2 FINDING THE IMPLIED MAIN IDEA OF A PARAGRAPH 2.3 GRAMMAR (PERFECT TENSES) 2.4 SKIMMING FOR THE GENERAL IDEA 2.5 DISTINGUISHING BETWEEN GENERAL AND SPECIFIC STATEMENTS 2.6 SELECTING THE MAIN IDEA DETAILS 2.7 GRAMMAR (CONDITIONALS)
https://www.thoughtco.com/how-to-find-the-main-idea-3212047
https://www.mdc.edu/Kendall/collegeprep-documents2-MAIN-20IDEASrevised815.pdf