1. Rule for Deleting Silent Final <e> . If a word ends with a silent final <e> that shows that the vowel sound in the word is long, you delete the silent final <e> when you add a suffix that starts with a vowel.
2. Combine the free stems and suffixes below. Show any cases of twinning or silent final <e> deletion:
up + p
in + n
3. Now try some the other way around. Analyze each word into its free stem and suffix. Show any cases of silent final <e> deletion or twinning:
= Free Stem
= twig + g
= quiz + z
= if + f
= up + p
= fifty + i
Teaching Notes. Points to emphasize: There is twinning in inning, twiggy, iffy, and upper because we assume that words with only one vowel sound like in, twig, if, and up have strong stress. There is no twinning in murmured and ordering because the second vowel in murmur and order have weak stress. The lack of stress in murmur may be specially tricky for students to hear: The identical spelling of the two syllables can be misleading.