PRIMARY SPELLING & PHONICS • CURRICULUM ARCHITECTURE TEACHER MASTER KEY INSTRUCTOR REFERENCE • PAGE 2 OF 2
LESSON 171 TEACHER GUIDE & ANSWER KEY ORTHOEPY • ETYMOLOGY • /f/ = GH / PH
Wheeler's Elementary Speller • Page 89
WordIPADigraph & OriginTeaching Prescription
laugh/lɑːf/gh (Old English hliehhan)Guttural /x/ shifted historically to /f/.
enough/ɪˈnʌf/gh (Old English genōg)Short ŭ sound before terminal /f/.
phrase/freɪz/ph (Greek phrasis)Digraph ph = /f/; voiced s = /z/.
phantom/ˈfæntəm/ph (Greek phantasma)Apparition or ghost. ph = /f/.
orphan/ˈɔːrfən/ph (Greek orphanos)Circumflex over o before r; ph = /f/.
triumph/ˈtraɪʌmf/ph (Latin triumphus)Terminal ph = /f/; long i in open first syllable.
Complete Answer Key & Solutions WHEELER'S EXERCISES
Exercise 1 Sorting Key:
• Germanic gh: laugh, tough, rough, cough, enough, trough, draught.
• Greek ph: Philip, Ralph, phantom, phrase, photo, phone, orphan, triumph.
All 15 produce the voiceless labiodental fricative /f/.
Exercise 3 Solutions:
1. laugh.
2. trough.
Etymology Clinic: Teach children that if a word looks scientific or scholarly with /f/, it is almost certainly spelled with ph!
Socratic Guiding Prompts & Pedagogical Insights INSTRUCTIONAL STRATEGIES
  • Why is 'laugh' spelled with 'gh' instead of an 'f'?
  • What language do words like 'phone', 'photo', and 'phrase' come from?
  • Can you think of any other words that use 'ph' to make the /f/ sound?
Dictation & Oral Application Sentences (Read slowly at normal speaking pace):
1. A merry laugh rang out from the cheerful children.
2. Horses drank cool fresh water from the deep stone trough.
3. The brave soldiers celebrated a great and noble triumph.
4. He spoke a kind phrase to comfort the lonely orphan.
Wheeler's Elementary Speller • Lesson 171 • Teacher Master Key Page 2 of 2 (Instructor Reference)