PRIMARY SPELLING & PHONICS • CURRICULUM ARCHITECTURE TEACHER MASTER KEY INSTRUCTOR REFERENCE • PAGE 2 OF 2

Target Word	Syllabication	Morphological Pattern	Pedagogical Note
toiler	toil-&etilde;r	Base toil (diphthong oi) + suffix -er	Agent noun: one who labors patiently
caller	c&adotbelow;ll-&etilde;r	Base call (broad ạ before double l) + -er	Base ends in double -ll, suffix attaches directly
worker	wõrk-&etilde;r	Base work (tilde o before r) + -er	First syllable tilde õ; second syllable tilde ẽ
speller	sp&ebreve;ll-&etilde;r	Base spell (short ĕ) + suffix -er	Regular agent noun; double -ll preserved
mother	mŭth-&etilde;r	Old English mōdor • Voiced medial th	Letter o pronounced as short ŭ (/mʌð-ər/)
brother	brŭth-&etilde;r	Old English brōþor • Voiced medial th	Letter o pronounced as short ŭ (/brʌð-ər/)

Complete Answer Key & Solutions WHEELER'S EXERCISES

Exercise 1 (Matrix Copywork): All 12 words hyphenated correctly by syllable with tilde (&etilde;) over terminal -er.

Exercise 2 (Agentive Suffix):
• toiler: toil + er (one who toils)
• caller: call + er (one who calls)
• worker: work + er (one who works)
• speller: spell + er (one who spells)

Exercise 3 (Kinship & Short O):
1. mother, brother, other (letter o sounds as short ŭ /ʌ/).
2. Sentence: “Mother asked my older brother to help weed the vegetable garden.”

Teaching Tip: Contrast proper (Latin root) with agent nouns.

Socratic Guiding Prompts & Pedagogical Insights INSTRUCTIONAL STRATEGIES

What does the suffix '-er' tell you about what a 'worker' or 'speller' does?
Look at 'mother', 'brother', and 'other'. What sound does the letter 'o' make in all three words?
Why don't we need to double the letter 'l' in 'caller' or 'speller' when adding '-er'?

Dictation & Oral Application Sentences (Read slowly at normal speaking pace):

1. My mother praised my older brother for being such a diligent worker.

2. A good speller must always use proper care and neat penmanship.

3. The weary toiler rested under the shade tree after a long day in the field.

4. A friendly caller came to our door to bring good news to all the family.