The document is a lesson plan on prepositions. It introduces prepositions like "in", "on", "at", "under", and "above" and nouns like "unicycle", "ski", "in-line skate", "entryway", and "drawer". It then provides exercises asking students to identify the nouns and their prepositions in sentences. The lesson concludes with an exercise asking students to identify the correct prepositions to complete sentences describing locations.