Great Song Super Teacher

Tan Peng returned to the Song Dynasty with the Taomi system and became an unknown teacher. The spring silkworms will not run out of silk until they die, and the wax torches will dry up only when they turn to ashes? Of course he can't... A strong young man will make a country strong, and he is more interested in training Da Song's future! (The protagonist does not act pretentious, does not touch his nose and smile bitterly, does not shrink back, and goes his own way)