The document provides an interactive grammar lesson for English language learners on comparative and superlative adjectives. It defines and gives examples of comparative adjectives using "-er" for two things and superlative adjectives using "-est" for three or more things. Students practice identifying and using comparative and superlative forms in sentences and questions. The lesson notes that some adjectives use "more" or "most" instead of suffixes. It includes exercises comparing objects, adjectives with multiple syllables, and a practice test for students.