Lesson 20: Short & Long I (Silent Letters gh & b)

1. Complete 12-Word Phonetic & Orthographic Matrix

Col 1 • Short ĭ (/ɪ/)

wish /wɪʃ/

wĭsh

miss /mɪs/

mĭss

cling /klɪŋ/

clĭng

spring /sprɪŋ/

sprĭng

Col 2 • Long ī (/aɪ/)

wild /waɪld/

wīld

child /tʃaɪld/

chīld

high /haɪ/

hīgh

sight /saɪt/

sīght

Col 3 • Long ī (/aɪ/)

night /naɪt/

nīght

right /raɪt/

rīght

might /maɪt/

mīght

climb /klaɪm/

clīmb

2. Master Diacritical Classification & Discovery Answers

Short ĭ Words (Breve ĭ, /ɪ/) [4 words]: wĭsh, mĭss, clĭng, sprĭng.
All are standard closed syllables where the short vowel is closed in by final consonant codas (-sh, -ss, -ng).

Long ī Words (Macron ī, /aɪ/) [8 words]: wīld, chīld, hīgh, sīght, nīght, rīght, mīght, clīmb.
Features two phonological mechanisms: lengthening before sonorant clusters (-ld, -mb) and silent trigraph spelling (-igh/-ight).

Question 1: What sound has gh in any of the above words?
→ Official Answer: It has no sound (the letters gh are silent). Found in: high, sight, night, right, might.

Question 2: Find another silent letter.
→ Official Answer: In the word climb, the letter b is silent (pronounced /klaɪm/, rhyming with time).

3. Science of Reading: The History of Silent Letters 'gh' & 'b'

The Evolution of Silent 'gh'

In Old English, words like niht and riht contained a velar fricative [x]. As speech shifted, the fricative became silent, and compensatory lengthening preserved the long vowel /aɪ/ in English spelling.

Cluster Simplification in 'climb'

In Old English climban, the b was voiced. During the 16th century, final /mb/ clusters simplified to single nasal /m/ (as in lamb, thumb, climb). The silent b remains as an etymological relic.

4. Assessment Rubric (25 Points Total)

Task Focus	Instructional Standard & Criteria	Scoring
1. Copying Accuracy	Neat, baseline-aligned transcription of all 12 target words without letter reversals.	6 pts (0.5 pt / word)
2. Oral Spelling Fluency	Accurate letter-by-letter oral spelling and clear distinction between short ĭ and long ī.	3 pts (1 pt / column)
3. Dictation Precision	Flawless spelling under teacher dictation, writing all 12 words accurately from listening.	6 pts (0.5 pt / word)
4. Diacritical Marking	Correctly marking breve (ĭ) on 4 words and macron (ī) on 8 words across the dictation.	6 pts (0.5 pt / word)
5. Discovery Questions	Accurately identifying silent gh (2 pts) and silent b in climb (2 pts).	4 pts (2 pts each)