1. Grade 3 Unit 1 lesson Review
Lesson Review Short vs. Long Vowel Sounds &
Doubling and Dropping Rules for adding vowel suffixes

2. Vowel suffixes
A suffix is a letter or letters added AFTER the base word to create a new word.
We know a suffix is a VOWEL suffix if the first letter of the suffix is a vowel.
Examples:
- ing
- y
-ed
-er
est

3. Adding vowel suffixes
When you add a vowel suffix to a base word, you MUST know if the final syllable of the base word has a short or long vowel sound.
DOUBLING RULE: When you hear a base word with a short vowel sound, double the final consonant before adding the vowel suffix.
DROPPING RULE: When you hear a base word with a long vowel sound, drop the silent e before adding the vowel suffix.

4. DOUBLE OR DROP? bone + y = bony cut + ing = cutting
DOUBLING RULE WORDS
DROPPING RULE WORDS
Base Word w/ Short Vowel Sound
cut + ing = cutting
shop + er = shopper
big + er = bigger
hop + ing = hopping
(Doubling the final consonant protects the vowel, so it keeps a short vowel sound).
Base Word w/ Long Vowel Sound
bone + y = bony
grade + ed = graded
shine + ing = shining
hope + ing = hoping

5. Spelling words cutting blaming liking bigger tuned liked
dropping muted braking
hopping hoping closing
shopper graded shiny
slopping sloping shining
bony trader