| Rime | Onsets Provided | Synthesized Words | Marked Output | IPA | Orthographic Rationale |
|---|---|---|---|---|---|
| -uff | b, c, m, p, bl, sn | buff, cuff, muff, puff, bluff, snuff | bŭff, cŭff, mŭff, pŭff, blŭff, snŭff | /ʌf/ | FLOSS rule: geminate -ff after short ŭ; bl- and sn- blends |
| -uck | d, l, cl, pl, st, tr | duck, luck, cluck, pluck, stuck, truck | dŭck, lŭck, clŭck, plŭck, stŭck, trŭck | /ʌk/ | -ck digraph mandatory after short ŭ; cl-, pl-, st-, tr- blends |
| -ump | j, pl, th, d, st, cl, tr | jump, plump, thump, dump, stump, clump, trump | jŭmp, plŭmp, thŭmp, dŭmp, stŭmp, clŭmp, trŭmp | /ʌmp/ | Nasal-bilabial blend -mp; voiced affricate j- and voiceless th- |
| -ush | g, m, br, h, bl, pl, thr, cr, sl | gush, mush, brush, hush, blush, plush, thrush, crush, slush | gŭsh, mŭsh, brŭsh, hŭsh, blŭsh, plŭsh, thrŭsh, crŭsh, slŭsh | /ʌʃ/ | Palato-alveolar fricative -sh; complex onsets thr-, bl-, br-, cr-, sl- |
| -ock | l, d, r, st, bl, sh, fl, cl | lock, dock, rock, stock, block, shock, flock, clock | lŏck, dŏck, rŏck, stŏck, blŏck, shŏck, flŏck, clŏck | /ɒk/ | Short ŏ review! Contrasts with -uck; -ck digraph after short ŏ |
1. Phonogram / Rime Synthesis Methodology: Research demonstrates that teaching onset-rime blending accelerates word recognition much faster than isolated phoneme blending. Lesson 30 groups 36 words into 5 high-utility phonograms (*-uff, -uck, -ump, -ush, -ock*).
2. The Deliberate -uck vs. -ock Minimal Pair Design: Wheeler intentionally introduces *-ock* alongside *-uck*. This allows the educator to contrast the lax short *ŭ* (/ʌ/ - STRUT) with short *ŏ* (/ɒ/ - LOT) across identical consonant frames (*duck/dock, luck/lock, stuck/stock, cluck/clock*).
3. Dual Consonant Codas: In all 5 families, the codas consist of either geminate consonants (*-ff* via FLOSS rule), digraphs (*-ck, -sh*), or consonant blends (*-mp*), perfectly reinforcing the closed-syllable short-vowel principle.
| Target Skill | Criteria for Mastery | Pts |
|---|---|---|
| Word Synthesis | All 36 words formed correctly from onset + rime. | /24 |
| Spelling Accuracy | Double -ff, -ck digraph, and consonant blends preserved. | /12 |
| Minimal Pair Check | Accurate identification of ŭ vs. ŏ in minimal pairs. | /8 |
| Penmanship | Proper letter formation and neat baseline writing. | /6 |
| TOTAL SCORE: | /50 | |