The reasons for the large scale of education in northern China are as follows:

1. Northern education pays more attention to students' knowledge accumulation, not just their practical ability.

2. North Education pays more attention to examinations, with more complicated examination contents, longer examination time, higher examination scores, higher examination requirements and more examination subjects.

3. Northern education pays more attention to students' theoretical knowledge rather than practical ability, so students pay more attention to the accumulation of theoretical knowledge rather than the improvement of practical ability in the learning process.