It is a great privilege and pleasure to write a foreword for a book honor ing Wolfgang Gaul on the occasion of his sixtieth birthday. Wolfgang Gaul is currently
Most would agree that the acquisition of problem-solving ability is a primary goal of education. The emergence of the new information technologiesin the last te
In the last decade there have been rapid developments in the field of computer-based learning environments. A whole new generation of computer-based learning en