| 遨游知识天地，学习地道英语。 |
| 1A Latitude, Longitude, and the Prime Meridian 1B Finding Position Using the Sextant and Chronometer 2A Starting a Christmas Tree Farm 2B Math for Growing Corn 3A Math in the Kitchen: How to Scale a Recipe Up or Down 3B Cooking Around the World: Metric Measurements 4A The Math of Human Resources 4B Betting on the Best Health Plan 5A Saving with Compound Interest 5B The Rule of 72 6A Supply and Demand at the Window Factory 6B The Craftsman House 7A Olympic Scoring Systems 7B Scoring in the Heptathlon 8A Lewis Carroll's Games 8B Mathematical Puzzles 9A Comparing Temperatures in Different Climates 9B How to Read a Natural Gas Bill 10A What Is Geometry? 10B Pauline Sperry 11A Calculating Probability 11B The Positive and Negative Numbers Game 12A Symmetry in Art 12B Pablo Picasso: Pioneer of Cubism 13A Life Expectancy 13B Social Security and Life Expectancy 14A Rhythm Patterns in Thai Classical Music 14B The Geometry of the Chula Kite 15A Worldwide Oil Reserves: Produce More or Conserve? 15B The Energy Crisis of the 1970s 附录 Answer Key Reading Rate Comprehension Score Comprehension Skills Profile |
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