Chapter 1 Social Studies·History and Geography 7
Unit 01 The U.S.Geography 7
Unit 02 The United States 11
Unit 03 The U.S.Economy 15
Unit 04 People and Culture 19
Unit 05 The European Exploration of Asia and the Americas 23
Unit 06 Europeans in the Americas 27
Unit 07 Colonial America 31
Unit 08 The Declaration of Independence 35
Wrap-Up Test 1 39
Chapter 2 Science 43
Unit 09 How Are Living Things Classified？ 43
Unit 10 Classification 47
Unit 11 How Plants Meet Their Needs 51
Unit 12 How Do Plants Reproduce？ 55
Unit 13 What Are Some Types of Plants？ 59
Unit 14 Plants without Seeds 63
Unit 15 Plant Responses and Adaptations 67
Wrap-Up Test 2 71
Chapter 3 Mathematics·Language·Visual Arts·Music 75
Unit 16 Numbers and Number Sense 75
Unit 17 Geometry 79
Unit 18 Myths and Legends 83
Unit 19 Learning about Language 87
Unit 20 Classical Art 91
Unit 21 Classical Music 95
Wrap-Up Test 3 99
School Textbook 102
Answers and Translations 145
Word List 161