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Let’s Round the Numbers

Let’s Round the Numbers. Take these numbers and round them to the nearest hundred million. China - 1,273,111,290. ≈ 1,300,000,000. Hundred million place. ≈ 1,000,000,000. India - 1,029,991,145. Hundred million place. United States - 278,058,881. ≈ 300,000,000. Hundred million place.

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Let’s Round the Numbers

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  1. Let’s Round the Numbers • Take these numbers and round them to the nearest hundred million. China - 1,273,111,290 ≈ 1,300,000,000 Hundred million place ≈ 1,000,000,000 India - 1,029,991,145 Hundred million place • United States - 278,058,881 ≈ 300,000,000 Hundred million place

  2. More Rounding! • Then round these numbers to the nearest million. China - 9,326,410 sq km ≈ 9,000,000 sq km Millions place • India – 2,973,190 sq km ≈ 3,000,000 sq km Millions place • United States - 9,158,960 sq km ≈ 9,000,000 sq km Millions place

  3. How many people per candy? • Now count the number of candies that you have in the China pile. How many people are represented by each candy? • Example: If you have 50 candies in the China pile and there are 1,300,000,000 people in China, then: 2 6 ,000,000 50 1,300,000,000 -10 300 This means with 50 candies each candy represents 26,000,000 people. -300 0 • Now you can do the same with the United States numbers!

  4. 9’ 12’ 90’ 27’ 105’ Room to Run • The perimeter of the soccer field measures 105’ x 90’. There is a 27’ x 9’ box in front of the goalie’s net in which only the goalie may stand. What is the total area of the part of the field in which all players are allowed to move?

  5. 9’ 12’ 90’ 27’ 105’ Room to Run First, calculate the total area: 90 ft. x 105 ft = ? Next, calculate the area of one goalie box: 27 ft. x 9 ft. = ? How can you determine the answer using these results?

  6. pupil iris Where does the haze come from? • Heavy traffic on freeways • Smokestacks from factories and refineries

  7. The first major U.S. cities BOSTON NEW YORK PHILADELPHIA BALTIMORE What do all of these cities have in common? CHARLESTON NEW ORLEANS DP-4.0

  8. Global Warming and Pollution Solar radiation passes through the clear atmosphere. Most is absorbed by the earth’s surface and warms it. But some solar radiation is reflected by the earth and the atmosphere.

  9. Global Warming and Pollution Infrared radiation is emitted from the earth’s surface. Some of it passes through the atmosphere, and some is absorbed and re-emitted in all directions by greenhouse gas molecules, water, and carbon dioxide. The effect of this is to warm the earth’s surface and the lower atmosphere.

  10. Carbon Monoxide As a fire burns, several chemical reactions take place. In one of them, carbon atoms (C) from the fuel bond with oxygen molecules (O2) to form carbon dioxide (CO2). When there is limited oxygen, carbon begins bonding with single oxygen atoms to form carbon monoxide (CO). RR-23.0

  11. O2 O2 O O O2 O2 O2 O O O O2 O2 O C C C C C C C C C RR-24.0 C

  12. Viral Superhighways • Some of our nerve cells are very long. The nerve cells from our feet to our spinal cord are around a meter in length. RR-56.0

  13. Viral Superhighways • Nerve cells contain microtubules that extend along the entire length of the nerve cell. RR-56.1

  14. What’s In A Plot? The Climax is the most intense part of the story where the main action occurs. Climax Rising Action The Rising Action is the series of events (conflict) that lead up to the climax. Falling Action includes all the events that occur after or as a result of the climax. Falling Action Exposition The Exposition is the start of the story, the situation before the action starts and includes setting. The Resolution is the closing of the story where loose ends are tied up. Resolution DP-59.3

  15. Catholics and Protestants • In 1834, about 80% of the Irish people belonged to the Catholic Church, while 18% were Anglicans or Presbyterians. DP-133.0

  16. Catholics and Protestants • The Scots and English were Protestants. DP-133.0

  17. Catholics and Protestants • The Catholics and Protestants in Ireland were often in violent conflict. DP-133.0

  18. The French explored and claimed a large area of the future United States. Immigrants from France ENGLISH CLAIM NEW SPAIN • Individuals and groups from France also immigrated to the U.S. NEW FRANCE ENGLISH COLONIES • What other parts of North America did the French claim? NEW SPAIN DP-107.0

  19. A set of triplets, Roxy, Moxie and Jen-Jen, take turns playing goalie position on K.T.’s soccer team. Each has kept track of her saves over the course of the season, and they decide to compare their average number of saves to see who has the best record. Roxy averaged 4 1/16 saves per game, Moxie averaged 4.083, and Jen-Jen averaged 4.83838383 saves per game. Which triplet has the best record? Nice Save!

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