At least 25 students had bought these flip-flops from a gang for US$8,100 per pair.
The regulations also limit exams in other years of compulsory education to once a term, with mid-term and mock examinations allowed in junior high school.
Educationists say it is difficult to change the school calendar in the midst of the Covid-19 pandemic.
The goal of enabling all children to receive quality education relies on the whole school community.
The national average grade improved to 4.80 compared to 4.86 in 2019.
They say the education ministry must provide clear communication to address the concerns raised by parents and teachers about the way forward without the Standard Six exam.