Spelling rules worth teaching (and the ones to skip)

Is English spelling really that irregular?

Less than people think. English spelling looks chaotic because it records more than sound. It keeps traces of where words came from, and it keeps word parts spelled the same even when their sound shifts. Once you account for position in the word, nearby letters and meaning, most spellings turn out to be predictable.

Take the /k/ sound. It can be spelled c, k, ck, ch or que. That sounds like a mess. But at the end of a short word right after a short vowel, it is almost always ck: duck, back, sock. After a consonant, it is k: milk, desk. At the start of a word before a, o or u, it is c: cat, cot, cup. A handful of patterns covers most of the words a young student will write.

Louisa Moats has argued for years that spelling is a window into what a student knows about language, and that teaching its logic helps reading too. I agree. The rules below are the ones that explain enough words to repay the teaching time.

What makes a spelling rule worth teaching?

Three tests. First, does it apply to many common words? A rule that covers twelve words is not worth a lesson. Second, does it hold most of the time? If the exceptions outnumber the examples, students will stop trusting it. Third, can a young student check it? A rule that depends on knowing a word's Latin origin is fine for eighth graders and useless for first graders.

Why do so many rules depend on short vowels?

Because English protects short vowels. A short vowel in a stressed syllable likes to be followed by two consonants, or a consonant team, at the end of a word or before a suffix. That is the logic behind ff, ll and ss, behind ck, tch and dge, and behind the doubling rule. All of them add a letter after a short vowel to keep it short and to mark it as short for the reader.

Seeing that common thread saves a lot of time. Instead of teaching six unrelated rules, you teach one idea, short vowels get extra protection, and show it in several spellings. Students who grasp this often start predicting the next rule before you teach it.

Which rules should you skip or soften?

Some rules are popular but weak. The famous rhyme about i before e except after c fails in common words like their, weird, height and science. It holds reasonably well only for words where ie or ei spells long e. If you teach it at all, teach that narrow version, and treat the others as words to learn.

• The two-vowels rhyme for reading: fails too often to be useful.
• The full i before e rhyme: true only for the long e sound, and even then with exceptions.
• Rules for choosing among er, ir and ur: too weak to teach; learn the words.
• Rules for -able versus -ible: helpful for older students, but too complex for the early grades.

The test for every rule on that list is the same one from the start of this page. Count how many common words a student will write that follow it, count the ones that break it, and ask whether a young student can check it on the spot. These four fail at least one of those checks.

For these, a better strategy is to teach students to try a spelling, look at it, and compare it with alternatives. Writing a word two ways and picking the one that looks right draws on visual memory built through reading. It is a real strategy, not a guess, and good spellers use it constantly.

In what order should the rules come?

Tie each rule to the phonics pattern it depends on. The floss rule and ck come with short vowel words in kindergarten or early first grade. Tch and dge come after digraphs and blends. The c or k choice comes once students spell many words that start with /k/. Suffix rules, doubling, drop e and change y, come once students add endings, usually late first grade through third.

1. Floss rule and ck, with short vowel words.
2. Adding s, then es, for plurals and verbs.
3. C or k at the start of a word.
4. Tch and dge, after digraphs and blends.
5. Doubling and dropping e with ing and ed.
6. Changing y to i.
7. Doubling in two-syllable words, by stress.

How should spelling rules be taught?

Explicitly and with lots of real words. State the rule in plain language, show several examples, then have students sort words that follow it from words that do not. Sorting is the step that turns a rule into understanding, because students have to apply it themselves.

After the sort, dictate words that follow the rule mixed with words that do not, so students must decide each time. Then look for the rule in their own writing. A rule that never shows up outside the spelling lesson will not stick.

What about exceptions?

Every rule has some. Teach the common ones openly and early, as a short list. For the floss rule, that might be if, of, bus, yes and this. For tch, it might be much, such, rich and which. Naming exceptions builds trust: students see that the rule is mostly true and that you are not hiding the cases that break it.

Do not let exceptions sink a useful rule. A rule that works for nine of every ten words a student will write is worth knowing. The exceptions are just words to memorize, and there are far fewer of them than there would be if the student had no rule at all.

Keep the exception list for each rule short and visible. A small card on the writing table, or a strip at the bottom of a spelling chart, lets students check quickly while they write. Add a word to the list only when it comes up in real writing, so the list stays tied to words students actually use rather than growing into a page of rarities nobody needs.

Some exceptions turn out to follow a deeper pattern once students are older. Many words that seem to break the floss rule, like is, has and his, end in the /z/ sound rather than /s/. Others, like bus and gas, are clipped forms of longer words, omnibus and gasoline. Sharing these stories with third and fourth graders makes spelling feel less arbitrary and more like a puzzle with clues.

How do spelling rules connect to reading?

Directly. The same patterns that guide spelling tell a reader how to pronounce a word. The doubled p in hopping tells the reader the o is short. The single p in hoping tells them it is long. A student who understands why words are spelled the way they are reads them more accurately and remembers them better.

A meta-analysis by Steve Graham and Tanya Santangelo found that teaching spelling improved students' spelling and also their phonological awareness and reading skills. That fits Ehri's work on orthographic mapping: building a precise memory for a word's spelling is what makes it readable at a glance. Spelling and reading feed each other.

How much spelling teaching do students need?

A short, regular block, often 10 to 20 minutes a day in the early grades, linked to phonics. Weekly lists that students memorize for a Friday test and forget by Monday are a weak use of time. Lists built around a pattern, with practice in sorting, building and dictation, do much better, because the student learns the pattern and can apply it to words not on the list.

The real test of spelling teaching is everyday writing. If students spell the week's pattern correctly on Friday but not in their journals the following week, the pattern has not transferred. Check their writing regularly, and reteach patterns that are not showing up there. Literacy Trail can line up dictation with the week's phonics, but any plan that ties spelling to reading and writing will work.