English Language Arts and Reading.4.3.C

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The student is expected to

determine the meaning of and use words with affixes such as mis-, sub-, -ment, and -ity/ty and roots such as auto, graph, and meter; and

vocabulary strand teks talk image

Knowledge and Skills Statement

Developing and sustaining foundational language skills: listening, speaking, reading, writing, and thinking--vocabulary. The student uses newly acquired vocabulary expressively.
a word element that occurs before (prefix) or after (suffix) a base word or root to modify its meaning (e.g., the prefix un- and the suffix -able in unbelievable)
Sometimes students can determine the meaning of an unfamiliar word by looking at its parts. If students know the meanings of various roots and affixes, they can determine the meanings of new words. For example, students may be not be familiar with the word misfortune, but if they know the prefix mis- indicates something is bad or negative, they would likely be able to determine that misfortune means a bad or unhappy situation.
a grammatical unit from which other words are derived They cannot stand alone and must be attached to another morpheme to form a word (e.g. fer in refer, confer, defer); they are usually derived from another language.

Research

Yurtbasi, M. (2015). Building English Vocabulary through Roots, Prefixes and Suffixes. Online Submission, Global Journal of Foreign Language Teaching, 5(1),  44–51. Retrieved from https://eric.ed.gov/?q=Nature+and+function+of+proposals+in+collaborative+writing&pr=on&ft=on&id=ED579889

Summary:  Researchers consider that a strong vocabulary contributes to learner success and consider this specifically for English learners. They focus on building a strong vocabulary through teaching specific Latin roots and their English derivatives, affixes, prefixes, and suffixes.