Wales' Education Secretary Kirsty Williams says the number of pupils being entered early for GCSE exams is 'unsustainable'.
In a statement today, she said: “I am concerned about the high number of pupils being entered early for their exams. Many of these pupils, who are taking exams before they have completed their two years of GCSE study, have not had the opportunity to reach their full potential. This is putting unnecessary pressure on pupils, teachers and also puts an extra strain on school budgets.
"I will respond to Qualifications Wales’s rapid review of this issue when I receive it in October, but the current situation is unsustainable and all options are on the table."
Changes in entry patterns, along with new maths qualifications, have impacted on this year's grades - though A* results remain stable.
Thousands of students are deciding what career option to take today (24 August) as they collect their GCSE results.