R-controlled vowels — also called “bossy R” — are vowels that change their sound when an rfollows immediately. The r “controls” the vowel so it no longer says its normal short or long sound. Instead it makes an entirely new sound. This is one of the last patterns kids master, and it’s the reason words like bird, hurt, and her are so often misspelled.
Download the cheat sheet
R-Controlled Vowels Cheat Sheet (Free PDF) — all 5 bossy-R patterns on one page. No email required.
The 5 r-controlled vowels at a glance
🔑 The biggest insight
er, ir, and ur all say the exact same sound /ɝ/. This is why kids write berd for bird and hert for hurt. Once they know all three spellings produce the same sound, spelling becomes a matter of visual memory, not phonics alone.
ar — the easiest r-controlled vowel
/ɑr/is the most distinct r-controlled sound — mouth opens wide, like saying “ahh” then closing with an r. It rarely gets confused with other sounds.
ar word list
ar = /ɛr/ exception: words before e, i, y
When ar comes before e, i, or y, it usually says /ɛr/ instead: care, dare, fare, hare, pare, rare, share, snare, spare, square, stare, ware. These are better taught as part of the air/are vowel pattern.
or — the second r-controlled vowel
/ɔr/has rounded lips and a slight “aw” quality before the r. Most kids get this right because it sounds obviously different from a bare /ɔ/.
or word list
or = /ɝ/ exception: work, word, world
A small group of or words say /ɝ/ like er/ir/ur: word, work, world, worm, worth, worse, worship.Teach these as a named cluster — “the W-or words.” The w before or shifts the sound.
er, ir, ur — the three spellings of one sound
All three say /ɝ/. Children need to learn all three because English uses them interchangeably — you can’t predict which spelling a word uses from sound alone.
er words
Note: er is also used in unstressed syllables at the end of words (mother, river, summer). These are so frequent they need to become automatic visual patterns.
ir words
ur words
| Spelling | Frequency | Where it appears | Common examples |
|---|---|---|---|
| er | Most common | Mid-word + unstressed endings | her, fern, mother, river |
| ir | Less common | Single-syllable words | bird, girl, shirt |
| ur | Less common | Often follows a consonant | burn, fur, nurse, turn |
Why kids struggle with bossy R
- The vowel loses its identity. A child who knows thati says /ɪ/ is confused when irsays /ɝ/. Explain: “R is so bossy it changes the vowel’s sound completely.”
- Three spellings, one sound. Kids write burd, hirt, hert for bird, hurt, her. They need to see all three spellings side by side and accept that only visual memory determines which to use.
- ar before vowels shifts sound. car vs care. Same letters, different sound. Use a minimal pair drill: car–care, bar–bare, star–stare.
Teaching sequence: 4 weeks
Activity: the er/ir/ur sort
- Write 15 /ɝ/ words on index cards: her, bird, fur, fern, shirt, burn, germ, girl, turn, stern, third, purse, verb, squirt, nurse.
- Make three columns: er / ir / ur.
- Child sorts each card, then reads the word. Check together.
- Do the sort again the next day without the columns visible — child writes from memory which spelling is correct.
Two rounds of this activity per week, for two weeks, is enough for most kids to stabilize all three spellings.
Download the print-ready er/ir/ur sort (Free PDF) — the exact same 15 words above, laid out as a word bank plus 3 columns to sort and write them into. No email required.
R-controlled practice worksheets
Want your child to write each word too, not just read it? These worksheets cover ar, or, and er/ir/ur, with a blank line under every word.
Download all 5 worksheets + the sort (118 words, Free PDF) — read each word out loud, then write it on the line. No email required.
- AR worksheet (34 words, PDF)
- OR worksheet (26 words, PDF)
- ER worksheet (15 words, PDF)
- IR worksheet (19 words, PDF)
- UR worksheet (24 words, PDF)
Next step: once r-controlled vowels are solid, move to the 6 syllable types to apply r-controlled knowledge to multi-syllable words.