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 I will know common roots and affixes derived from Greek and Latin and use this knowledge to analyze the meaning of complex words.

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 cycl means “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. 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.

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

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

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

8. Read the following Greek or Latin roots. circ, circum around Latin cycl revolving - wheel Greek equ same, even, equal Latin pend hang 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 circuit cyclone equidistant pendulum equality dependent

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

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

13. Answer these questions: 1.What is an affix? 2.What is a root? 3.Is circl as in circle a root or an affix? 4.What does the root circl mean? 5.What is the root in bicycle? 6.What that the root mean?

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

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 is part 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: 1.an equilateral triangle a. equal sides b. right angles c. large 2.a dependent patient a. giving help b. needing help c. young 3.working for equality a. liberty b. getting votes c. fairness 4.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. 1.__ bicycle 2.__ tricycle 3.__ biped 4.__ triceratops 5.__ triangle 6.__ bilingual 7.__ unicorn 8.__ triplets a.a cycle with three wheels b.a geometric figure with three angles c.having two feet d.speaking two languages e.dinosaur with three horns f.having one horn g.a cycle with two wheels h.three siblings born at the same time a g c e b d f h