**2. MALESA learning system**

The first system learning design has borrowed the threshold and knowledge-weight concepts from machine learning (Mitchell, 1997) to build up the intelligent learning tool. The educator needs only to give a learning domain and a few beginning questions (even beginning questions are not compulsory) to the system before the learning discussion starts. The system then asks learners to judge (or criticize) other's proposed solutions. Through threshold evaluation of the knowledge-weights, knowledge pieces are automatically ranked and arranged by the intelligent learning system. This kind of teamwork learning would then integrate and synthesize previous and current learning to increase the knowledge base.
