Multiple Skills Series, Level D Book 4: Using the Multiple Skills Series, you can diagnose reading comprehension problems and provide targeted practice that helps your students refine their skills. This leveled supplemental series provides practice in nine major skill areas: Using Phonics and Vocabulary Comparing and Contrasting Identifying Cause and Effect Finding Details Identifying Fact and Opinion Getting the Main Idea Drawing Conclusions Sequencing Making Inferences The self-paced lessons in the Multiple Skills Series work well for all students: including below-average students Individual, small-group, and whole-class instruction.