What are the two research forms of educational technology and what are they respectively?

Practice has many meanings. The classic view is that subjectivity is seen in the objective, including the inevitability of objective to subjective and the inevitability of subjective to objective.

Practice is a social activity in which people actively transform and explore all objective substances in the real world.

The basic characteristics of practice are objectivity, initiative and social historicity.

Conventional characteristics

Practice has its own laws and characteristics, which are different and opposite to thinking and understanding. Practice cannot exist independently without thinking and cognition. Practice needs the practical consciousness generated by thinking as the command, and thinking needs the knowledge gained by cognition as the foundation. Without thinking and cognition, there is no practice. Practice, thinking and cognition are a unified whole, which is the continuous and harmonious daily behavior of the subject.

Practice is the creator of the world and everything. Without practice, there would be no real world in which we live, no cities, villages, mountains, fields and everything created by practice, and no subject for survival and development in practice. Practice creates not only new objects, but also new subjects.