[ANSWER KEY] TEACHER REFERENCE GUIDE
EVALUATION STANDARD: 100% MASTERY
INSTRUCTIONAL KEY
LESSON 19: VOWEL CONTRAST & R-CONTROLLED I — MASTER KEY
Complete Diacritical Transcription, R-Controlled 'birds' Analysis & Science of Reading
Official Solution
1. Master Diacritical Map: Phonological Marking of a and i
Robert Burns Selection:
The wīld bĩrds săng, the wīldwood răng.
Richard Le Gallienne Selection:
The sun ĭs weary, for he răn
So fär ănd făst to-dāy;
The bĩrds are weary, for who săng
So many songs ăs they?
Moral Couplet Selection:
Whătever you are, be kīnd;
Be gentle ĭn mănner ănd mīnd.
2. Master Solution to Directive 3 (The Third Sound of i)
Directive 3 Target Word: birds (appears in Burns quote and Le Gallienne poem).
Phonetic Sound: R-controlled vowel sound /ɜːr/ (Webster wave/tilde notation: bĩrds).
Linguistic Principle: The letter r exerts a co-articulatory pull on preceding lax vowels, producing a unique vocalic r phoneme that is acoustically distinct from short /ɪ/ and long /aɪ/.
3. Science of Reading: R-Controlled Vowels & Morphological Families
R-Controlled Syllable Type
In English phonics, r-controlled vowels represent a distinct syllable category. The letter r colours the preceding vowel, neutralizing the short/long contrast into vocalic /ɜːr/.
Poetic Prosody & Character Theme
Burns crafts musical internal consonance (-ang), while Le Gallienne explores the natural fatigue of the sun. The final couplet unites phonics (kind/mind) with social-emotional virtue.
4. Assessment Rubric (25 Points Total)
| Task Focus |
Instructional Standard & Criteria |
Scoring |
| 1. Copying Accuracy |
Neat, baseline-aligned transcription of all 7 poetic lines across the 3 selections. |
10 pts (Burns: 2, Le Gallienne: 5, Couplet: 3) |
| 2. Diacritical Marking |
Accurately identifying short ă, ĭ (breve) and long ā, ī (macron) across the selections. |
8 pts (Consistency & precision) |
| 3. Discovery Question |
Correctly identifying 'birds' as containing r-controlled /ɜːr/ (neither short nor long). |
4 pts (2 pts word + 2 pts sound) |
| 4. Oral Reading Fluency |
Rhythmic, expressive recitation reflecting poetic meter and correct vowel values. |
3 pts (Prosody & expression) |