English Language Arts (2021) Grade(s): 3

ELA21.3.8f

Decode and encode words using knowledge of the morphological structure of a word, including prefixes, suffixes, and roots.

COS Examples

Examples: fore-, anti-, post-, sub-; -ment, -hood, -er, -or; port, ject, form, dict

Unpacked Content

Knowledge

  • Prefixes are word parts that can be added to the beginning of a word to change the meaning of the word.
  • Suffixes are word parts that can be added at the end of the word to change the meaning of the word.
  • The root word is the base word in which a prefix or suffix can be added.
  • Morphology refers to the meaningful units of a word that are combined to make the whole word.

Skills

  • Decode and encode words with prefixes, suffixes, or both, using their knowledge of the morphological structure of words.

Understanding

  • Their knowledge of the different word parts (prefixes, suffixes, and roots) can help them read and spell most multisyllabic words if they break them apart into smaller morphemes.

Vocabulary

  • Decode
  • Encode
  • Knowledge
  • Morphological structure
  • Prefixes
  • Suffixes
  • Roots
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