1. Editorial

   Editorial Introduction Pages: 223 - 224

2. Katie thought she couldn't do it but now she knows she can

   • Patricia A. Forster

   OriginalPaper Pages: 225 - 242

3. Between languages and discourses: Language practices in primary multilingual mathematics classrooms in South Africa

   • Mamokgethi Setati
   • Jill Adler

   OriginalPaper Pages: 243 - 269

4. Understanding the concepts of proportion and ratio constructed by two grade six students

   • Parmjit Singh

   OriginalPaper Pages: 271 - 292

5. Learning to prove by investigations: a promising approach in Dutch secondary education

   • Louis van Schalkwijk
   • Theo Bergen
   • Arnoud van Rooij

   OriginalPaper Pages: 293 - 311

6. Making Sense of What Students Know: Examining the Referents, Relationships and Modes Students Displayed in Response to a Decimal Task

   • Barbara M. Moskal
   • Maria E. Magone

   OriginalPaper Pages: 313 - 335

7. Volume contents

   Volume Contents Pages: 337 - 338