Lynn’s King Edward VII School is making reasonable progress towards coming out of special measures, according to inspectors.
The latest monitoring report into the school was published by Ofsted on Thursday, following a two-day visit by inspectors last month.
Headteacher Mike Douglass said he was pleased that the progress the school had made since it was deemed inadequate by inspectors last November had been recognised.
He added: “That is testament to the hard work of students and staff over the past year.”
Mr Douglass, who retires as head next week, also confirmed that the school remains on course to become an academy this autumn.
In a letter to Mr Douglass, lead inspector Jason Howard said that, while progress rates remained uneven, including underachievement in science, extra support measures put in place to help Year 11 students had increased the proportion who are on course to reach expected standards in maths and English.
He added that a “significantly higher proportion” of students were expected to gain five A* to C GCSEs, including English and maths this year than last year.
Teaching was also reported to have improved, although quality remains uneven.
And levels of persistent absence, which are still said to be above the national average, are falling because of the school’s work with outside agencies, the use of fixed penalty notices and rewards for full attendance.