For the children of the tail section, any "education" is likely minimal and focuses on basic survival skills, possibly supplemented with whatever scraps of knowledge they can glean from the older generation.
The children in the front carriages, however, receive a highly structured and manipulative education that reinforces the existing power structure and the perceived superiority of the upper classes. It’s a system designed to maintain the status quo and prevent rebellion. This “education” likely includes the propagation of ideology that justifies the severe inequalities aboard the train.
In short, education in *Snowpiercer* is not about enlightenment or advancement; it's a tool of oppression and control, highlighting the film's themes of social injustice and the dangers of unchecked power.