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 knowcommon roots derived from Greek and Latin and use this knowledge to analyzethe meaning of complex words. skill

3. Activating Prior Knowledge • Have you heard the word metric? • The root metr / meter means “measurement.” • Can you see the root therm in thermos? • The root therm means “heat.” • Can you see the root metr in the Spanish word “metro” or in the English word meter?

4. Concept Development • Root: The fundamental element of a word or form, exclusive of all affixes and inflectional phonetic changes. Bullet proof definition • Root: The root is the part of the word that contains the basic meaning. Student friendly definition

5. Concept Development • metr: From the Greek word metron meaning “measure.”. • therm : From the Greek word therme meaning “heat”. Bullet proof definitions • metr: Greek root meaning “measure.” • therm: Greek root meaning “heat.” Student friendly definitions

6. Metr is a Greek root meaning “measure.” Tell your partner what metr means.

7. Therm is a Greek root meaning “heat.” Tell your partner what therm means.

8. Read the following Latin roots. therm heat Greek metr / meter measure Greek

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: diameter geometry metronome perimeter symmetrical thermal thermometer thermostat

11. an instrument for measuring the temperature of person or place • Read these definitions / synonyms: • a line passing through the center of a circle from one side to the other • a device for regulating heat • a device that marks the beat for musicians • Area of mathematics that deals with lines, angles, and figures • Warm, hot, having to do with heat • similar in shape and size on opposite sides of a dividing line • the distance around a figure

12. an instrument for measuring the temperature of person or place • Match the words with the correct definitions or synonyms: diameter • a line passing through the center of a circle from one side to the other geometry • a device for regulating heat metronome • a device that marks the beat for musicians perimeter • Area of mathematics that deals with lines, angles, and figures symmetrical • Warm, hot, having to do with heat thermal thermometer • similar in shape and size on opposite sides of a dividing line thermostat • the distance around a figure

13. Answer these questions: • What is a root? • Does metr as in metric mean heat or measure ? • What does the rootthermmean? • What is the root in biometric? • What does the root mean?

14. Identify the roots. Guided Practice • diameter • thermostat • geometry • thermometer • metronome • thermal • symmetrical • perimeter

15. Meaning in Context Use the words in the box to fill in the blanks in the following paragraph. perimeter thermometer geometry thermal When working outdoors in Alaska, the surveyors from Louisiana wore (1) ______________ underwear to preserve their body heat, but they were still cold. The morning that the (2) _________________ showed a temperature below zero, they put on extra layers of clothing, but they were still cold. These surveyors were smart they had studies (3) ________________ and knew how to correctly mark the boundaries of large pieces of land. They had no difficulty measuring the (4) __________________ of what they had marked. What they didn’t know was how to get used to the cold. thermal

16. Closure • A root is – • the part of the word that contains the basic meaning. • metr means – • metr is a Greek root meaning “measure” • therm means – • thermis a Greek root meaning “heat”

17. Independent Practice Match the bolded word with the best synonym: • measure the diameter • a. curve b. circle c. line • athermal system • a. difficult b. heating c. grading • adjusted the thermostat • a. sound b. light c. temperature • symmetrical parts • a. intersecting b. similar c. cold 5. using a metronome a. timekeeper b. metal bar c. musical instrument

18. Extension Kilo and milli (which appear with meter) are meaningful word parts. In the metric measuring system kilo- (from Greek for thousand) means “one thousand” and milli- (from Latin for thousand) means “one part of one thousand.” A kilometer is 1000 meters. A millimeter is 1/1000 of a meter. Among the words in this lesson are perimeter, diameter, and thermometer. Meter is a meaningful part of many other words too. Match each “meter” word in column 1 with what it could measure in column 2. • miles per hour in a car • distance between cities • water in a swimming pool • the weight of a person • a line less than a centimeter long • weight of a paper clip • the liquid in a medicine dropper • atmospheric pressure for predicting the weather • __speedometer • __ kilometer • __ millimeter • __ barometer • __ milligram • __ kiloliter • __ kilogram • __ milliliter a b e h f c d g