Nouns identify people, places, ideas, or Emersion vs. Immersion, while pronouns replace nouns to avoid repetition. Verbs express actions or states of being, adjectives describe nouns, and adverbs modify verbs, adjectives, or other adverbs. Prepositions establish relationships between words, conjunctions connect ideas, and interjections express emotions. Learning these building blocks helps students understand how sentences function rather than relying solely on memorization.