Massachusetts Curriculum Frameworks
MA.L.2. Grade 2 Language Standards [L]
Vocabulary Acquisition and Use
L.2.4. Determine or clarify the meaning of unknown and multiple-meaning words and phrases based on grade 2 reading and content, choosing flexibly from an array of strategies.
L.2.4.f. Recognize and use appropriately abbreviations related to grade-level content or commonly used in everyday life (e.g., a.m., p.m.)