Daftar Isi:1. Playing with Integer Concepts A Quest for Structure 2. Integer Play and Playing with Integers 3. Students Thinking About Integer Open Number Sentences 4. Teaching Integers to Students with Disabilities Three Case Studies 5. Take It Away or Walk the Other Way Finding Positive Solutions for Integer Subtraction 6. Different Differences Metaphorical Interpretations of Difference in Integer Addition and Subtraction 7. Challenges of Promoting Conceptual Change with Instructional Contexts 8. Nuances of Prospective Teachers Interpretations of Integer Word Problems 9. Prospective Teachers Attention to Children s Thinking About Integers Temperature and Distance 10. Using Models and Representations Exploring the Chip Model for Integer Subtraction 11. Commentary on Chapters 1 to 3 Using Meaningful Analogies to Reflect on and Make Sense of Integers 12. Commentary on Chapters 4 to 7 Students Learning of Integer Addition and Subtraction Using Models 13. Commentary on Chapters 8 to 10 Teachers Knowledge and Flexibility Understanding the Roles of Didactical Models and Word Problems in Teaching Integer Operations 14 Conclusion Reflecting on the Landscape Concluding Remarks