1. Patterns of Variation in Teaching the Colour of Light to Primary 3 Students

   • Lo Mun Ling
   • Pakey Chik
   • Ming Fai Pang

   OriginalPaper Pages: 1 - 19

2. Interactivity Between Protégés and Scientists in an Electronic Mentoring Program

   • Cara Bonnett
   • Barbara M. Wildemuth
   • Diane H. Sonnenwald

   OriginalPaper Pages: 21 - 61

3. Patterns of Instructional-design Factors Prompting Reflective Thinking in Middle-school and College Level Problem-based Learning Environments

   • Hae-Deok Song
   • Barbara L. Grabowski
   • William L. Harkness

   OriginalPaper Pages: 63 - 87

4. Instructions for Authors

   OriginalPaper Pages: 89 - 96