Vocabulary and Concept Development EDI

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).

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

3. Activating Prior Knowledge • Have you heard the word circle? • The root circ means “around.” • Can you see the root cycl in bicycle? • The root cyclmeans “revolving.” • What revolves on a bicycle?

4. Concept Development • Affix: A word element that is placed at the beginning (prefix), in the middle (infix), or at the end (suffix) of the root or word stem. • Root: The root is the part of the word that contains the basic meaning. Bullet proof definitions • Affix: Part of a word that is placed at the beginning or at the end of the root or word stem. • Root: The root is the part of the word that contains the basic meaning. Student friendly definitions

5. An Affix ispart of a word that is placed at the beginning or at the end of the root or word stem. Tell your partner what an affix is.

6. A root is the part of the word that contains the basic meaning. Tell your partner what a root is.

7. Read the following affixes: semi- half or partly Latin re- again, anew, back Latin bi - two Latin -al like, suitable for Latin uni- one Latin -ate to become associated with Latin de- from, away, off Latin -ent to form Latin quad- quatr- four Latin

8. Read the following Greek or Latin roots. pend hang Latin circ, circum around Latin cycl revolving - wheel Greek equ same, even, equal Latin

9. 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?

10. Skill Development • Read these words: circulate unicycle cyclone circuit equidistant pendulum equality dependent

11. Read these definitions / synonyms: to move around one revolving wheel path around which electricity passes hanging onto for support hanging from a clock revolving winds same conditions or treatment

12. Match the words with the correct definitions or synonyms: circulate to move around hanging onto for support unicycle path around which electricity passes cyclone one revolving wheel circuit hanging from a clock equidistant revolving winds pendulum same conditions or treatment equality same distance dependent

13. Answer these questions: • What is an affix? • What is a root? • Is circl as in circle a root or an affix? • What does the rootcircl mean? • What is the root in bicycle? • What that the root mean?

14. Identify the roots. Guided Practice • circus • circular • semicircle • cycle • cyclone • recycle • equal • equivalent

15. Meaning in Context Use the words in the box to fill in the blanks in the following paragraph. semicircle unicycle circular cyclone circulate Members of our local One-Wheel Cyclists Club claim that anyone can learn to ride a (1) _____________________. The club members meet in a park that has both straight and (2)____________________ paths for riding. Some of the more skilled members can pedal halfway around a circle and then pedal backwards over the same (3)__________________. At the meetings, newcomers often (4)___________________ among the long-term members to hear about some interesting and unusual experiences. One rider likes to tell beginners about the time she was almost caught in a (5)_____________________ and pedaled home as fast as she could while the wind and rain increased. unicycle

16. Closure • An affix is – • An Affix ispart of a word that is placed at the or at the end of the root word or word stem. • A root is – • the part of the word that contains the basic meaning.

17. Independent Practice Match the bolded word with the best synonym: • an equilateral triangle • a. equal sides b. right angles c. large • a dependent patient • a. giving help b. needing help c. young • working for equality • a. liberty b. getting votes c. fairness • a circular route • a. curved b. level c. short 5. to equate the situation a. describe b. make unfair c. treat as same

18. Extension The numbers one (uni-), two (bi-), and three(tri-) are connected with many words. In this lesson you met the word unicycle, and you learned that a unicycle has one wheel. There are many words that start with uni-, and they also have a “one” connection. Look at the word unify, which means “to bring together as one.” Underline the prefix you see in each of these words. Match the word with the definition. • __ bicycle • __ tricycle • __ biped • __ triceratops • __ triangle • __ bilingual • __ unicorn • __ triplets g • a cycle with three wheels • a geometric figure with three angles • having two feet • speaking two languages • dinosaur with three horns • having one horn • a cycle with two wheels • three siblings born at the same time a c e b d f h