1. Calculus Students’ Use and Interpretation of Variables: Algebraic vs. Arithmetic Thinking

   • Susan S. Gray
   • Barbara J. Loud
   • Carole P. Sokolowski

   OriginalPaper 01 April 2009 Pages: 59 - 72

2. Journey to the Past: Verifying and Modifying the Conceptual Sources of Decimal Fraction Knowledge

   • Irit Peled
   • Juhaina Awawdy-Shahbari

   OriginalPaper 01 April 2009 Pages: 73 - 85

3. Explanations in Mathematics Classrooms: A Discourse Analysis

   • Indigo Esmonde

   OriginalPaper 01 April 2009 Pages: 86 - 99

4. Print Media Representations of Science Fairs

   • G. Michael Bowen
   • J. Lawrence Bencze

   OriginalPaper 01 April 2009 Pages: 100 - 116

5. Using Video Games in Science Instruction: Pedagogical, Social, and Concept-Related Aspects

   • Kamini Jaipal
   • Candace Figg

   OriginalPaper 01 April 2009 Pages: 117 - 134

6. Reviewing The Assault on Progress: Technology and Time in American Literature

   • Janine Fisk

   Review/Recension 01 April 2009 Pages: 135 - 136