Decades ago we diagrammed sentences to help us understand their structure. Not all students like to do this, but mathematical-logical students love it (see Gardner´s 8 types of intelligence.) Diagramming is useful to show if we have complete or incomplete sentences, whether a given word in a sentence should be an adverb or an adjective, how prepositions always need objects, etc. On this worksheet I´ve included a series of sentences that move from being very simple to being very complex, and I´ve included the lines needed to correctly diagram the sentences for students who would like that assistance. Since not all students like this kind of activity, it would be good to place it in a learning center that allows students to choose which of many activities they want to do.