Practitioner: We all come across unfamiliar words when we are reading and when I encourage you to try to guess the word you have asked me in the past, how?
Learners (All): Yes (with a sigh).
Practitioner: What ways have we learned so far to guess the word?
Learner (Samantha): By looking at the sentence and predicting what the word would be based on the meaning of the sentence.
Practitioner: Yes Samantha, this is a good way to guess a word's meaning.
Sometimes a word can change the meaning of the sentence depending on how it is put together. This is what we are going to learn about today - prefixes.

Present instruction of what prefix means.

"Prefixes are added to the beginning of a root word to give a different meaning to the word."

Present new information

The practitioner provides a couple of examples showing the prefix "un." Using cards, the practitioner presents the root word, adds the prefix, and then takes it away. The group is asked if they know of other examples. The practitioner models how the word can be broken down to get meaning (i.e. refill, fill, and unhappy and unlock).

Model the use of a prefix by doing the following:

Re = again
Redo = re + do = do it again
Rebuild = re + build = build it again

Check for understanding.

Present additional words and ask for learner participation to define the meanings of the words by using the same format as was modeled above:
recapture, reenter, remodel.

Then demonstrate and model how to deal with "un".

Provide the meaning of "un"- not or the opposite and model.
Unhappy = un + happy = not happy
Undo = un + do = to reverse what has been done