1. Infinity – The never-ending struggle

   • David Tall
   • Dina Tirosh

   OriginalPaper Pages: 129 - 136

2. History of the Infinitely Small and the Infinitely Large in Calculus

   • Israel Kleiner

   OriginalPaper Pages: 137 - 174

3. Cantor's Cardinal and Ordinal Infinities: an Epistemological and Didactic View

   • Hans Niels Jahnke

   OriginalPaper Pages: 175 - 197

4. Natural and Formal Infinities

   • David Tall

   OriginalPaper Pages: 199 - 238

5. Young Peoples' Ideas of Infinity

   • John Monaghan

   OriginalPaper Pages: 239 - 257

6. Letting the Intuitive bear on the Formal; A Didactical Approach for the Understanding of the Limit of a Sequence

   • Joanna Mamona-Downs

   OriginalPaper Pages: 259 - 288

7. When `The Same' is not perceived as such: The case of infinite sets

   • Pessia Tsamir

   OriginalPaper Pages: 289 - 307

8. Tacit Models and Infinity

   • Efraim Fischbein

   OriginalPaper Pages: 309 - 329

9. Contents of Volume 48

   OriginalPaper Pages: 331 - 331