Abstract. The COG-TECH (Cognitive Technologies for Problem Solving and Learning) Network conducted three international projects between 1994 and 2001 under the auspices of the European Commission. The main purpose of these projects was to train teacher educators in the Mediterranean countries to use computers as effective pedagogical tools. The summer schools and local workshops organized by COG-TECH introduced teacher educators and teachers to a set of computer-based cognitive tools. Applied research in the projects addressed such issues as the development of appropriate content and effective methods for training teacher educators to use cognitive technologies in teaching, the identification of the strengths and limitations of several cognitive tools for different learning situations, and the factors affecting implementation of information and communication technology innovation in education.