Vocabulary and Concept Development EDI Standard 1 4

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).

Learning Objective concept • I will know affixes derived from Greek and Latin and use this knowledge to analyze the meaning of complex words. skill

Activating Prior Knowledge • Have you heard the word combine? • The word connect has the prefix con-. • Can you see the prefix re- in review? • What does review mean?

Concept Development • Prefix: A word element that is placed at the beginning of the root or word stem. Prefix: Part of a word that is placed at the beginning of the root or word stem. •

Concept Development • com- or con-: Latin prefix meaning with or together: also used as an intensive. re- : Latin prefix meaning back or returning to a previous state; again, anew, or over again. • com- or con-: Prefix from Latin meaning “together” or “with. ” • re- : Prefix from Latin meaning “back” or “again. ”

Tell your partner what the prefixes com- or con- mean. The prefixes com - and con-come from Latin meaning “together” or “with. ”

Tell your partner what the prefix re - means. The prefix recomes from Latin and it means “back” or “again. ”

Read the following prefixes: comtogether, with Latin contogether, with Latin re back, again Latin

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?

Skill Development • Read these words: committee communicate conjunction converse reaction reelect reflect relate and, but, or, …

• Read these definitions / synonyms: Ø a response; the production of a chemical change in substances Ø a group of people who work together on some matter Ø to chose and elect again; to vote into office for another term Ø to make known, to share information together Ø to bend or throw back light or sound; to think back about, consider carefully Ø to talk together Ø to have a connection with; to tell Ø a joining word; the part of speech that joins other words or groups of words; joining together

• Match the words with the correct definition or synonym: Ø a response; the production of a chemical change in substances committee communicate conjunction converse Ø a group of people who work together on some matter Ø to chose and elect again; to vote into office for another term Ø to make known, to share information together reaction Ø to bend or throw back light or sound; to think back about, consider carefully reelect Ø to talk together reflect Ø to have a connection with; to tell relate Ø a joining word; the part of speech that joins other words or groups of words; joining together

Answer these questions: 1. 2. 3. 4. 5. 6. What do the prefixes com- or con- mean? What does the prefix semi-mean? What does combine mean? What does conductor mean? What does return mean? What does rewrite mean?

Guided Practice Identify the prefixes. • • relate committee reflect communicate reelect conjunction reaction converse

Meaning in Context Use the words in the box to fill in the blanks in the following paragraph. related conversed Committee reaction reelected Committee Each member of the Science Fair (1) ________ had a different idea about how to arrange the displays. Danya, who had attended last year’s fair, (2) _________ how several projects got broken when people bumped into the tables. Jason and Allison became irritated with each other when they (3) _______ about where to put the tables. Soon they were having an argument. When Zoe, the chairperson, tried to get them to cooperate, their (4) ________ was to argue with her, too. Although she finally restored order, Zoe hoped she would not be (5) _________ to the committee when the science fair came around next year.

• A Prefix is – Closure • Prefix : A word element that is placed at the beginning of the root or word stem. • The prefixes com- and con- mean – • The prefixes com- and con- come from Latin meaning “together” or “with. ” • The prefix re- means – • The prefix re- comes from Latin and it means “together” or “with. ”

Independent Practice Match the bolded word with the best synonym: 1. using a conjunction in a sentence a. noun b. joining word c. verb 2. to relate to a. to be done c. repeat 3. reelect the president a. choose again b. connect b. side with 4. communicate information a. make known b. decide on 5. to reflect upon a. dream b. judge c. vote c. hide c. consider

Extension The prefix com- / con- (together, with) is sometimes spelled other ways. Look at col- in collect (to gather together). Look at co- in cooperate (to work with). Look at cor- in correspond (to communicate with by letters). All these spellings of the prefix carry the meaning “together, with. ” Sort the following words according to the spelling of the prefix by listing each one under com-, con-, or other. concert collision companion collage com- ______________ correspondence congruent connection con- ______________ coordinate company community other ______________