Productive interactions can enhance meaningful learning. Through applying computer technology appropriately, classroom interactions can be proceeded more effectively and productively. In view of this, this study presents and applies the WiTEC, a learning environment that adopts ubiquitous computing and wireless learning devices with various interaction-supporting functions, to promote productive interaction between members in the classroom. This study first clarifies the definition and critical factors of productive interaction and illustrates the interrelationship between WiTEC and productive interaction. Then, seven WiTEC-enhanced interaction modes that integrate the features of WiTEC are identified. Furthermore, the features and modes are summarized to reveal how using WiTEC can promote productive interaction.