CVC means consonant-vowel-consonant. It refers to one syllable, short vowel words beginning with a consonant, followed by a short vowel and ending with a consonant. “Cat,” “pen,” “pig,” “dot,” and “bug” are examples of CVC words.
In CVC words, all the letters are pronounced, and they are pronounced the way children expect. So for example, the word “gas” is a CVC word, but the word “was” is not since the “a” sounds like a “u” and the “s” sounds like a “z.”
Most children learning to read understand a one-to-one logic system. CVC words follow that logic system. Each time a student reads a “d,” it sounds like a “d.” Each time a student reads a short “a,” it sounds like a short “a.” No silent letters as in “bike” or “boat.” No digraphs as in “chat” and “them.” No letter combinations that change sound in different words like “sew” and “few.”