1. Comma to Set off
Additional Information
6th and 7th Grade Language

2.  You must set off “additional information”
with commas.
The Rule

3.  Additional information…
◦ Is any group of words that is not essential to
the meaning of the sentence
◦ Usually provides more detail for the reader
◦ Sometimes explains the word coming before it
Additional Information??

4.  Andy’s dream to memorize every word in
the dictionary might actually come true.
 Andy’s dream might actually come true.
 Andy’s dream, to memorize every word in
the dictionary, might actually come true.
Examples

5.  Emily and Kate her sister are both in my
class.
 Emily and Kate are both in my class.
 Emily and Kate, her sister, are both in my
class.
More Examples

6.  My ipod which is old and beat up still
works fairly well.
 Jill’s computer an HP no longer functions
properly.
 The Cubs’ goal to win the World Series will
not be achieved in my lifetime.
Practice

7.  My ipod, which is old and beat up, still
works fairly well.
 Jill’s computer, an HP, no longer functions
properly.
 The Cubs’ goal, to win the World Series,
will not be achieved in my lifetime.
Answers