Which statement about morphological knowledge helps students with word meaning?

• A. Morphological knowledge helps students infer meaning and generate new words using prefixes, suffixes, and roots
• B. It has no impact on vocabulary
• C. It only affects spelling
• D. It replaces phonics instruction

Answer: (A)

Understanding how words are built from roots, prefixes, and suffixes helps students infer meaning of unfamiliar words and generate new ones. When you know that a root carries a core idea and that prefixes or suffixes modify meaning or part of speech, you can often unlock meaning without needing a dictionary. For example, recognizing that act is a root about doing, and that re- means again, helps you guess the meaning of react or reaction, and noticing -ful or -ness changes a word’s function or quality. This awareness not only clarifies what a word means but also broadens vocabulary as students can form new words from familiar parts. In contrast, saying it has no impact on vocabulary misses how often meaning is derived from word parts, and suggesting it only affects spelling ignores how morphology and meaning work together in reading. It also isn’t about replacing phonics instruction, since understanding word parts complements decoding and pronunciation.