An R-controlled vowel is when a vowel sound does not make a long or a short sound, because of the R. Remember, our vowels that make the vowel sounds are A, E, I, O, U, and oftentimes the letter Y.

Learn about r-controlled vowel patters -ar- and -or-. - Hello there first-grade learners. Welcome to Read, Write, Roar. Today, we are going to be working on learning our controlled vowel patterns.