1. Jeff Babb & James Currie(Canada)
The Brachistochrone Problem: Mathematics for a Broad Audience via a Large Context
2. Michael Fried (Israel)
History of Mathematics in Mathematics Education: a Saussurean Perspective
3. Spyros Glenis (Greece)
Comparison of Geometric Figures
4. Giorgio T. Bagni (Italy)
“Obeying a rule”: Ludwig Wittgenstein and the foundations of Set Theory
6. Antti Viholainen (Finland)
Incoherence of a concept image and erroneous conclusions in the case of differentiability
7. Dores Ferreira & Pedro Palhares (Portugal)
Chess and problem solving involving patterns
8. Friðrik Diego & Kristín Halla Jónsdóttir (Iceland)
Associative Operations on a Three-Element Set
10. Barbara Garii & Lillian Okumu (New York, USA)
Mathematics and the World: What do Teachers Recognize as Mathematics in Real World Practice?
11. Linda Martin & Kristin Umland (New Mexico, USA)
Mathematics for Middle School Teachers: Choices, Successes, and Challenges
12. Woong Lim (Texas, USA)
Inverses – why we teach and why we need talk more about it more often!
13. Steve Humble (UK)
Magic Math Cards
The issue also contains a couple of articles on logarithms in a historical perspective, a large section of articles with reactions on the report of the National Mathematics Advisory Panel, etc.