Orthography and Spelling Rules Flashcards

A student is writing the adjective derived from 'notice' + the suffix '-able.' She writes 'noticable' and asks why her spelling is incorrect. Which principle BEST explains why the silent 'e' must be retained in 'noticeable'?

Answer: The silent 'e' is retained to preserve the soft /s/ pronunciation of 'c,' which would otherwise revert to /k/ before the vowel of the suffix

In English orthography, 'c' is soft (/s/) before the letters e, i, and y. When the suffix '-able' (beginning with 'a') attaches directly to 'notic-', the 'c' would precede 'a' and revert to /k/, producing an incorrect pronunciation. The silent 'e' acts as a graphemic placeholder that keeps 'c' in a soft-c environment. The same principle applies to 'manageable' (retaining 'e' to preserve soft 'g'). This contrasts with 'lovable,' where no soft-consonant preservation is needed and the 'e' is correctly dropped.

A clinician notes that 'refer' → 'referred' (consonant doubled) but 'refer' → 'reference' (consonant NOT doubled, producing *'referrence'). Which principle most precisely accounts for this apparent inconsistency in the doubling rule?

Answer: When stress shifts away from the final syllable of the base word in the derived form, the condition for doubling is no longer met, so the consonant remains single

The multisyllabic doubling rule (sometimes called the 'accent-on-last-syllable' rule) requires three conditions: the base word ends in one vowel + one consonant, the suffix begins with a vowel, AND the final syllable of the base is stressed. 'Refer' /rɪˈfɜr/ has final-syllable stress → 'referred' doubles correctly. However, in 'reference,' stress shifts to the first syllable /ˈrɛf.ər.əns/, so the final condition is no longer satisfied and the 'r' stays single. This stress-conditioned behavior is a critical teaching point for advanced spellers.

The standard 'vowel + y' rule states that when 'y' is preceded by a vowel, it is retained unchanged before a suffix (e.g., 'play' → 'played,' 'enjoy' → 'enjoyed'). Which of the following represents a lexicalized exception that violates this pattern and must be taught as irregular?

Answer: pay → paid (y changes to 'i' despite being preceded by the vowel 'a')

The rule 'do not change y to i when preceded by a vowel' holds for the vast majority of English words (play/played, enjoy/enjoyed, destroy/destroyed). However, a small set of high-frequency words — 'pay/paid,' 'say/said,' 'lay/laid,' and 'day/daily' — violate this pattern by changing 'ay' to 'ai' before certain suffixes. These are lexical exceptions preserved from Middle English vowel shift patterns and must be explicitly flagged during Orton-Gillingham and structured literacy instruction as irregular forms, not rule-governed behavior.

A student applying the '-ck' spelling rule writes 'treck' for the word 'trek.' Her reasoning: 'It has a short vowel, so it needs -ck.' Which rebuttal most accurately identifies the flaw in her overgeneralization?

Answer: The '-ck' rule applies only when the /k/ sound immediately and exclusively follows the short vowel, with no consonant intervening between the vowel and the /k/ phoneme

The '-ck' rule is precise: use '-ck' to spell /k/ at the end of a syllable when it is immediately preceded by a single short vowel with no intervening consonant. In 'trek,' the phoneme /r/ sits between the short vowel /ɛ/ and the final /k/, forming the consonant cluster '-rk.' Because the /k/ does not immediately follow the short vowel, the condition for '-ck' is not met and '-k' alone is correct. This same logic explains 'silk,' 'risk,' 'bulk,' and 'honk' — all have a consonant before the /k/ and therefore never take '-ck.'

The word 'muscle' contains a 'c' that is phonemically silent in its base form /ˈmʌs.əl/. A CALT practitioner argues that the 'c' is morphophonemically justified. Which related word form provides the strongest evidence for retaining 'c' in the spelling of 'muscle'?

Answer: muscular (where the 'c' surfaces as /k/ in the stressed environment of the derived form)

This question tests the morphophonemic principle: English orthography sometimes preserves letters that are silent in a base word because they surface phonemically in morphological relatives, thus maintaining a consistent spelling across the word family. In 'muscle' /ˈmʌs.əl/, the 'c' is silent. However, in 'muscular' /ˈmʌs.kjʊ.lər/, the 'c' is pronounced /k/ because it appears in a stressed syllable before 'ul.' Recognizing this family relationship explains and justifies the otherwise puzzling silent 'c.' The same principle underlies 'sign/signal,' 'bomb/bombard,' and 'debt/debit.'

The 'floss rule' (also called the doubling rule for /f/, /l/, /s/, /z/) predicts that these consonants are doubled after a single short vowel at the end of a monosyllabic word. A practitioner must also teach the true exceptions to this rule. Which of the following is a genuine exception — a monosyllabic word with a short vowel that violates the expected doubling — rather than a rule-following example?

Answer: gas (/ɡæs/ — short vowel + single s)

The floss rule correctly predicts 'cliff' (ff), 'dwell' (ll), 'class' (ss), and 'fuzz' (zz). However, 'gas' — along with 'if,' 'is,' 'has,' 'yes,' 'us,' 'bus,' 'plus,' 'this,' and 'pal' — are genuine orthographic exceptions: they contain a short vowel in a monosyllabic word before /f/, /l/, /s/, or /z/, yet do NOT double the consonant. These words must be explicitly flagged as irregular during structured literacy instruction because no productive rule predicts their single-consonant spelling. Note that 'gas' is particularly instructive because it has a short /æ/ vowel, satisfying every condition of the floss rule except the actual spelling outcome.