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  • Unit °­Àdz»¿ë(ÁÖÁ¦) ºÐ·®
    1 How Transportation Has Changed 22ºÐ
    2 Inventors and Inventions 22ºÐ
    3 Choosing Our Leaders 19ºÐ
    4 Presidents' Day in February 19ºÐ
    5 Countries Have Neighbors 18ºÐ
    6 The Amazon Rainforest 20ºÐ
    7 Protecting the Earth 20ºÐ
    8 The World's Endangered Animals 19ºÐ
    9 World Religions 18ºÐ
    10 Religious Holidays 17ºÐ
    11 Early Travelers to America 18ºÐ
    12 The Pilgrims and Thanksgiving 19ºÐ
    13 Inside the Earth 16ºÐ
    14 Earthquakes and Volcanoes 18ºÐ
    15 Why Does the Moon Seem to Change? 18ºÐ
    16 The First Man on the Moon 20ºÐ
    17 Electricity 17ºÐ
    18 Conserving Electricity 20ºÐ
    19 Motion and Forces 18ºÐ
    20 Magnets 17ºÐ
    21 What is Sound? 17ºÐ
    22 Sounds and Safety 17ºÐ
    23 The Organs of the Human Body 18ºÐ
    24 The Five Senses 18ºÐ
    25 Word Problems 21ºÐ
    26 Place Value 18ºÐ
    27 Multiplication and Division 18ºÐ
    28 Skip Counting Equal Groups 16ºÐ
    29 What Are Myths? 16ºÐ
    30 Prometheus Brings Fire 18ºÐ
    31 Nouns 20ºÐ
    32 Some Common Sayings 19ºÐ
    33 Realistic Art and Abstract Art 19ºÐ
    34 Picasso and His Work 18ºÐ
    35 Many Kinds of Music 19ºÐ
    36 Modern Music 19ºÐ

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