Concentration is a person's mental state of carrying out an activity. This activity can be static, dynamic, interesting or boring, for people and things.
Different from attention.
Attention is also a psychological state of human activity, which is innate. Concentration is not innate, it needs to be cultivated, and it is a continuous and lasting state.
Attention is a large-scale form, which has no clear direction and social function; Concentration is directional, including will quality, and also has social function.
Attention is not good or bad, only strong or weak; There are good and bad concentration, which is not so much attention as social adaptability.