CCSS.ELA-LITERACY.L.2.4.D
Use knowledge of the meaning of individual words to predict the meaning of compound words (e.g., birdhouse, lighthouse, housefly; bookshelf, notebook, bookmark).
LA 2.1.5.a
Use word structure elements, known words, and word patterns to determine meaning (e.g., contractions, plurals, possessives, basic parts of speech, compounds, syllables).
