Chapter 1 Social Studies ★ History and Geography 9
Unit 01 Laws and Rules 法律與規範 10
Unit 02 Earning, Spending, and Saving 收入、開銷與儲蓄 14
Unit 03 Goods and Resources 商品與資源 18
Unit 04 Technology Changes the World 科技改變世界 22
Unit 05 Living in Different Climates 生活在不同的氣候 26
Review Test 1 30
Chapter 2 Social Studies ★ History and Geography 32
Unit 06 Geography Skills 地理技能 32
Unit 07 The Government 政府 36
Unit 08 Ancient Egypt 古埃及 40
Unit 09 Ancient Greece 古希臘 44
Unit 10 Ancient Rome 古羅馬 48
Review Test 2 52
Chapter 3 Science 53
Unit 11 A World of Plants 植物的世界 54
Unit 12 A World of Animals 動物的世界 58
Unit 13 Food Chains 食物鏈 62
Unit 14 Ecosystems 生態系統 66
Unit 15 Earth’s Rocks and Soil 地球的岩石與土壤 70
Review Test 3 74
Chapter 4 Science 75
Unit 16 Conserving Our Resources 保護資源 76
Unit 17 Earth’s Changing Surface 地表的變化 80
Unit 18 Weather and the Water Cycle 天氣與水循環 84
Unit 19 The Universe 宇宙 88
Unit 20 The Senses 感覺官能 92
Review Test 4 96
Chapter 5 Mathematics 97
Unit 21 Fractions 分數 98
Unit 22 Geometry 幾何學 102
Unit 23 Multiplication and Division 乘法與除法 106
Unit 24 Measurement 測量 110
Review Test 5 114
Chapter 6 Language ★ Visual Arts ★ Music 115
Unit 25 Myths from Ancient Greece 古希臘神話 116
Unit 26 Learning about Language 學習語言 120
Unit 27 Appreciating Artwork 藝術鑑賞 124
Unit 28 Creating Designs 創造設計 128
Unit 29 Elements of Music 音樂的元素 132
Unit 30 A World of Music 音樂的世界 136
Review Test 6 140

Chapter 1 Social Studies ★ History and Geography 9
Unit 01 Laws and Rules 法律與規範 10
Unit 02 Earning, Spending, and Saving 收入、開銷與儲蓄 14
Unit 03 Goods and Resources 商品與資源 18
Unit 04 Technology Changes the World 科技改變世界 22
Unit 05 Living in Different Climates 生活在不同的氣候 26
Review Test 1 30
Chapter 2 Social Studies ★ History and Geography 32
Unit 06 Geography Skills 地理技能 32
Unit 07 The Government 政府 36
Unit 08 Ancient Egypt 古埃及 4...