ELA21.2.17b

English Language Arts (2021) Grade(s): 2

ELA21.2.17b
Identify meaningful parts of words (morphemes) and use them as clues to the meaning of unknown words, including base words, compound words, and frequently occurring affixes and inflections.

Unpacked Content

Knowledge

Words can be divided into smaller parts that carry meaning, which are called morphemes.
Compound words are one word made of two independent, base words (example: hot dog is made of hot and dog).
Affixes and inflections can be added to words to change their meaning.

Skills

Break words down into their smallest meaningful parts (morphemes) to determine the meaning of an unknown word.
Identify suffixes like -less, -est, -ful to determine the meaning of an unknown word.
Divide compound words into their smaller individual words to determine the meaning of unknown words.

Understanding

They can break words into smaller parts to determine the meaning of words that they don't know.
Knowing affixes and inflections can also help them determine the meaning of unknown words.
Compound words are made of two base words, and they can divide the compound word into two parts.

Vocabulary

Identify
Meaningful parts of words
Morphemes
Base words
Compound words
Affixes
Inflections

COS Examples

Examples: -less, -ful, -est

Note: Adding suffix -est changes an adjective to a superlative adjective; adding suffix -ful changes the part of speech.

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