R-controlled syllables

How does it work?

R is the bossiest letter in English spelling. Put it right after a vowel and the vowel loses its usual sound: cat becomes cart, hen becomes her. Three spellings, er, ir and ur, all make the same sound, which makes this type easy to read and hard to spell. In two-syllable words, the r-controlled syllable most often comes second, usually as er: num/ber, win/ter, sis/ter.

The word lists, divided

How do you teach it?

Teach ar and or first, since each spells one clear sound. Then teach er, ir and ur together as three spellings of one sound, and give students a spelling default: er is by far the most common, especially at the end of a word. Practice reading by covering the r: read "ca", then add r and hear the vowel change.

"Here's 'garden'. Find the vowels: a, e. The a has an r right after it, so it's r-controlled: ar says /ar/. Split: gar/den. 'Gar', then 'den'. Garden. Notice we don't say a short a and then /r/. The a and r work as one."

What is the common error, and the fix?

Readers try to say the vowel short and then add /r/, so "car" comes out with a short a. Spellers swap er, ir and ur freely. The reading fix is to treat the vowel and the r as one unit, read in one go. The spelling fix is to learn the common ir and ur words and default to er when unsure.

Sort it: a hands-on activity

Sort r-controlled cards by sound: /ar/ (car, park), /or/ (fork, born) and /er/ (her, bird, turn). Then sort the /er/ pile again by spelling, er, ir and ur, and count which pile is biggest.

How this list was built