1. Double the last letter Objectives:
Add a suffix to root words correctly

2. Adding a Suffix One Syllable Words
Double the final consonant of a one syllable word when adding a suffix if…
the root word ends in consonant+vowel+consonant
the suffix begins with a vowel

3. Do I double the consonant?
the root word ends in consonant+vowel+consonant
the suffix begins with a vowel
jog + er
nap + ing
light + ing
bug + ing
ship + ed
ship + ment
jogger
napping
lighting
bugging
shipped
shipment

4. Two or More Syllable Words
Double the final consonant of a two or more syllable word when adding a suffix if…
the root word ends in consonant+vowel+consonant
the suffix begins with a vowel
the word is accented on the last syllable**

5. Do I double the consonant?
the root word ends in consonant+vowel+consonant
the suffix begins with a vowel
the word is accented on the last syllable*
diet + ing
forget + ing
transfer + ing
admit + ance
flavor +ed
recur + ence
dieting
forgetting
transferring
admittance
flavored
recurrence

6. With two or more syllable words:
the word is accented on the last syllable*
* as long as the accent doesn’t change when you add the suffix
con `fer `con fer ence
pre `fer `pre fer ence
re `fer `ref er ence

7. Do I double the consonant?
Does the root word end in consonant+vowel+consonant?
Does the suffix begin with a vowel?
Is the word is accented on the last syllable?
Does the stressed syllable stay the same when you add the suffix?

8. Adding a Suffix One Syllable Words
Does the root word end in consonant+vowel+consonant?
Does the suffix begin with a vowel?
Two Syllable Words
Is the word is accented on the last syllable?
Does the stressed syllable stay the same when you add the suffix?

9. One Syllable Words fill + ed file + ed cramp + ing hop + ing let + ing
trip + ing
run + er
blog + er
drum + er
scrub + ed

10. One Syllable Words filled filed cramping hopping letting tripping
runner
blogger
drummer
scrubbed