Traditional Teaching Idea to Constructive Teaching Idea——Side Discussion of Mission of Modern Educational Technology

Traditional teaching idea tends to consider knowledge as a final conclusion and study as an input of knowledge from outside to inside, and also underestimates the ability of learners' cognition, knowledge experience and difference, and produces an oversimplified tendency in teaching, which lead to many negative outcomes. However, constructive learning idea reflects the three-key shift, stresses the constructiveness, socialization and environmental nature of learning, and plays a crucial part in renewing traditional teaching idea and realizing active and effective teaching.