CCSS.ELA-LITERACY.L.1.4.C
Identify frequently occurring root words (e.g., look) and their inflectional forms (e.g.,looks, looked, looking).
LA 1.1.5.a
Use word structure elements, known words, and word patterns to determine meaning (e.g., plural forms, simple compounds, base words).
CCSS.ELA-LITERACY.L.1.4.B
Use frequently occurring affixes as a clue to the meaning of a word.
