CCSS.ELA-Literacy.L.1.4 Determine or clarify the meaning of unknown and multiple-meaning words and phrases based on grade 1 reading and content, choosing flexibly from an array of strategies.

• CCSS.ELA-Literacy.L.1.4a
  Use sentence-level context as a clue to the meaning of a word or phrase.
• CCSS.ELA-Literacy.L.1.4b
  Use frequently occurring affixes as a clue to the meaning of a word.
• CCSS.ELA-Literacy.L.1.4c
  Identify frequently occurring root words (e.g., look) and their inflectional forms (e.g., looks, looked, looking).