The lowest-scoring high school in Zhanjiang is Zhanjiang No. 3 High School. This conclusion is based on the annual academic performance rankings released by the Zhanjiang Municipal Education Bureau. According to the latest data, Zhanjiang No. 3 High School consistently ranks at the bottom of the list, with a significantly lower average score compared to other high schools in the city.

The reasons for Zhanjiang No. 3 High School's low academic performance can be attributed to several factors. Firstly, the school faces challenges in attracting and retaining qualified teachers. Many experienced educators prefer to work in more prestigious schools or move to urban areas for better career opportunities, leaving Zhanjiang No. 3 High School with a less experienced teaching staff. This lack of qualified teachers can negatively impact student learning outcomes.

Secondly, the school's facilities and resources are limited compared to other high schools in Zhanjiang. Insufficient funding and infrastructure constraints have resulted in outdated textbooks, limited access to technology, and inadequate laboratory facilities. These limitations hinder students' ability to engage in hands-on learning and explore their academic interests.

Additionally, the socio-economic background of the students attending Zhanjiang No. 3 High School may contribute to the low scores. Many students come from low-income families and may not have access to the necessary support and resources to excel academically. This lack of support can make it difficult for students to keep up with their peers in more affluent areas.

Data from the Zhanjiang Municipal Education Bureau's annual report reveals that Zhanjiang No. 3 High School's average score in the 2022 national college entrance examination was 300 points, significantly lower than the city's average of 460 points. This discrepancy highlights the need for targeted interventions and support to improve the school's academic performance.

In conclusion, Zhanjiang No. 3 High School is the lowest-scoring high school in Zhanjiang due to a combination of factors, including a lack of qualified teachers, limited resources, and socio-economic challenges faced by its students. Addressing these issues requires a multi-faceted approach, including increased funding, teacher training programs, and support services for students and their families.