1. Vocabulary and Concept Development EDI
Standard:
1.4 Students will identify common roots and affixes derived from Greek and Latin and use this knowledge to analyze the meaning of complex words (e.g., international).
Teacher reads the standard as students repeat.

2. concept skill Learning Objective
I will know affixes derived from Greek and Latin and use this knowledge to analyze the meaning of complex words.
CFU - A tells B and vise versa.
Students write down the learning objective in their journal.
skill

3. Activating Prior Knowledge
Have you heard the word incorrect?
The word incorrect has the prefix in-.
Can you see the prefix semi- in semiprivate?
What does semiprivate mean?
A and B share their thoughts. Teacher calls on 2-3 non-volunteers to share their thoughts.

4. Bullet proof definitions Student friendly definitions
Concept Development
in- : Latin prefix meaning no, not, without, it becomes il- before l; im- before b, m, or p; and ir- before r.
semi- : Latin prefix meaning half , partly, not fully, imperfectly, or twice in a (specified period) .
Bullet proof definitions
in-: Prefix from Latin meaning “not.”
semi- : Prefix from Latin meaning “half” or “partly.”
A tell B what each prefix means. B tell A
CFU - Pick non volunteer.
Students write down the student friendly definitions.
Student friendly definitions

5. Tell your partner what the prefix in- means.
The prefix in- comes from Latin meaning “not.”
Tell your partner what the prefix in- means.
Model: thinking
A tell B what the root means. B tell A
CFU - Pick non volunteer.

6. Tell your partner what the prefix semi- means.
The prefix semi- comes from Latin and it means “half” or “partly.”
Model thinking
A tell B what the root means. B tell A
CFU - Pick non volunteer.

7. Read the following prefixes:
semi -
half, partly
Latin
in-
not
Latin
ELD – oral practice and visuals

8. Importance
Have you ever been confused about a word and have not been able to figure out its meaning?
Have you ever had to use knowledge of word meaning to figure out the meaning of a new or difficult word?
Discussion

9. ½ ½ ½ ; Skill Development Read these words: inactive informal
insignificant
insomnia
semiannual
semicolon
Teacher reads each word and students repeat it.
semiconscious ;
semiformal
semiprecious

10. Read these definitions / synonyms:
Having only part of the value of a precious gemstone
Not moving or active; no longer in use
Requiring good clothes rather than play clothes
Casual, relaxed, not formal
Half or partly awake, not fully conscious, in a daze
Not significant, unimportant, lacking power or value
Teacher reads each definition and students repeat it.
Punctuation mark that is halfway between the full stop of a period and the short pause of a comma
Unable to fall or stay asleep
Occurring in half a year; every six months

11. Match the words with the correct definition or synonym:
Having only part of the value of a precious gemstone
Not moving or active; no longer in use
inactive
informal
Requiring good clothes rather than play clothes
insignificant
Casual, relaxed, not formal
insomnia
Half or partly awake, not fully conscious, in a daze
semiannual
Not significant, unimportant, lacking power or value
semicolon
Teacher reads each word, allows TPS time, calls on a non-volunteer, check answer.
Punctuation mark that is halfway between the full stop of a period and the short pause of a comma
semiconscious
semiformal
Unable to fall or stay asleep
semiprecious
Occurring in half a year; every six months

12. Answer these questions:
What does the prefix in- mean?
What does the prefix semi-mean?
What does incapable mean?
What does insincere mean?
What does semiprivate mean?
What does semisweet mean?
Read each question, TPS, call an a non-volunteer.

13. Guided Practice inactive semiannual informal semicolon insignificant
Identify the prefixes.
inactive
semiannual
informal
semicolon
insignificant
semiconscious
insomnia
semiformal
semiprecious
Give time for students to Think-Pair-Share then ask for 3 non-volunteers to share their answers. Have student repeat information given when needed.

14. Meaning in Context
Use the words in the box to fill in the blanks in the following paragraph.
semiannual insomnia insignificant inactive
Brenda knew it made no sense to fret over something as (1) _____________ as losing a game of chess. But in the middle of the night she was still wide awake with (2) ___________________. How had her cousin Sam beaten her so easily? Sam and his parents were visiting her family as they usually did every six months. On these (3) ________________ visits she and Sam always played chess, and Brenda usually won. But this time it had been different. Then she remembered. Sam had injured himself in a soccer game and was on the team’s (4) ______________ list. He probably had played a lot of chess instead. Brenda decided that losing a chess game to Sam was completely understandable, and she quickly fell asleep.
insignificant
Students use their white boards to show their response(s).

15. Closure The prefix in- means – The prefix semi- means –
The prefix in- comes from Latin meaning “not.”
Call on 3 or 4 students strategically or call on 3 or 4 non-volunteers to tell what an affix and a root is.
The prefix semi- means –
The prefix semi- comes from Latin and it means “half” or “partly.”

16. Independent Practice Match the bolded word with the best synonym:
Using a semicolon
a. number b. punctuation mark c. parallel
a semiprecious stone
a. having the highest value b. brand new c. Having partial value
their semiformal outfits
a. dressy b. patched c. dirty
Students read along as teacher read choices out-loud prior to completing the work sheet.
insignificant gossip
a. whispered b. unimportant c. loud
5. a semiconscious state
a. dazed b. alert c. unhappy

17. Extension __ irregular __ immovable __ irreplaceable __ illogical
The prefix in- has several spelling variations, but they all mean “not.” Ignore means not to notice. Illegal means not legal. Impossible means not possible. Irresistible means not able to be resisted.
Match the following words with its definition.
__ irregular
__ immovable
__ irreplaceable
__ illogical
__ imperfect
__ impractical
__ irremovable
__ immature
not able to remove
not able to replace
not regular
not perfect
not logical
not practical
not able to move
not mature c a b e d f g h