Today, Andrew completed an exercise from Warm-Up #5 in "Calisthenics for the Brain." We reviewed that complete sentences must have a subject and predicate, and fragments are missing one or both components. He then completed a grammar IXL exercise identifying complete sentences and fragments. We then reviewed what the main idea of a passage is, and how to determine it. He completed an IXL reading comprehension exercise on identifying the main idea of a passage.