1. Reflections: Past/future intersections

   • Helen Forgasz

   Editorial Pages: 1 - 2

2. The mathematical tale of two teachers: A longitudinal study relating mathematics instructional practices to level of intellectual development

   • JoAnn Cady
   • Sherry L. Meier
   • Cheryl A. Lubinski

   Articles Pages: 3 - 26

3. Early mathematics development and later achievement: Further evidence

   • Carol Aubrey
   • Ray Godfrey
   • Sarah Dahl

   Articles Pages: 27 - 46

4. Effects of classroom instruction on students’ understanding of quadratic equations

   • Pongchawee Vaiyavutjamai
   • M. A. (Ken) Clements

   Articles Pages: 47 - 77

5. The mathematical knowledge and understanding young children bring to school

   • Barbara Clarke
   • Jill Cheeseman
   • Doug Clarke

   Articles Pages: 78 - 102

6. The case of bruce: A teacher’s model of his students’ algebraic thinking about equivalent expressions

   • Jean E. Hallagan

   Articles Pages: 103 - 123