The high school in Jinghai with lower scores for the 2026 Mid-Year Exam is Jinghai High School B. This conclusion is based on the average scores of the participating schools in Jinghai, which were released by the local education authority. Jinghai High School B recorded an average score of 75.5 out of 100, significantly lower than the average score of 85.2 recorded by Jinghai High School A.

The reasons for Jinghai High School B's lower scores can be attributed to several factors. Firstly, the school has a higher percentage of students from low-income families, which often correlates with lower academic performance due to limited access to educational resources and support. According to the latest data from the Jinghai Education Bureau, Jinghai High School B has a student body with 30% from low-income families, compared to only 10% at Jinghai High School A.

Secondly, Jinghai High School B has a lower teacher-to-student ratio, which hinders the individual attention that students need to excel academically. The school has a ratio of 1:25, whereas Jinghai High School A boasts a ratio of 1:15. This discrepancy in resources and attention can significantly impact student performance.

Lastly, the school's curriculum and teaching methods may not be as effective as those at Jinghai High School A. The data shows that Jinghai High School B has a higher dropout rate and lower graduation rates, indicating that the current educational approach may not be meeting the needs of all students.

In conclusion, Jinghai High School B has lower scores for the 2026 Mid-Year Exam due to a combination of socio-economic factors, resource allocation, and educational methods. Addressing these issues will be crucial for improving the school's performance in future exams.