1. Introductory statement

   • Karen C. Cohen

   EditorialNotes Pages: 295 - 296

2. What makes science hard? A Karplus lecture

   • Sheila Tobias

   OriginalPaper Pages: 297 - 304

3. LabNet: Toward a community of practice

   • Richard Ruopp

   OriginalPaper Pages: 305 - 319

4. Ameliorating gender differences in attitudes about science: A cross-national study

   • Jane Butler Kahle
   • Léonie J. Rennie

   OriginalPaper Pages: 321 - 334

5. Learning scientific reasoning with the interactive computer

   • Alfred Bork

   OriginalPaper Pages: 335 - 348

6. Relationship between teacher intentions and their classroom use of Superscience

   • David P. Butts
   • Thomas Koballa
   • Douglas P. Butts

   OriginalPaper Pages: 349 - 357

7. Constructivism and science education: Some epistemological problems

   • Michael R. Matthews

   OriginalPaper Pages: 359 - 370