Introduction 引言 Think About It 想想看 Venn Diagrams 維恩圖 Tracking the Trail 沿著山徑探索 Drawing Conclusions 得出結(jié)論 Nuggets of Knowledge 寶貴的點滴信息 Relationships and Patterns 關(guān)系與模式 Underwater Exploration 水下探索 Math Mentor 數(shù)學顧問 Follow the Clues! 跟隨線索! Math Notebook 數(shù)學備忘錄 Index 索引