"Seamless education" does not hurt students' self-esteem, lose face and attract resistance. Suhomlinski once said: "The most important reason for the difficulty in educating teenagers is that educational practice is carried out in a naked form in front of them, and people of this age are naturally unwilling to feel that someone is educating them." Doesn't "seamless education" reflect this educational idea? In the "non-trace" critical education, students understand what is respect and equality, and experience the dignity of independent personality and the heart of teachers. Education is seamless, and things are moistened silently. Although there is no trace, it has amazing power. Listening to thunder in a quiet place, students wake up in the touch of their hearts. In the heart-to-heart collision, students' thoughts are sublimated, their souls are purified and their grades are improved. Facts show that "seamless" critical education can strengthen emotional communication between teachers and students, protect students' self-esteem, stimulate students' enterprising spirit, and be more conducive to the healthy development of students, thus achieving the best educational effect.