Ofqual have just published a consultation (Friday night, thanks), on changing the formula for awarding grade 9s in the new GCSEs.
The new formula would change from top 20% of 7s to get a 9 to top 7% of grade 7s plus 0.5*percentage of candidates who get a 7 to get a 9.
This would reduce the percentage of students getting a 9 in maths from 4.2 to 3.7, English from 4.5 to 4.2 and English lit from 4.7 to 4.5. This would also make it harder to get an 8 as the boundary for an 8 will be set halfway between a 7 and a 9.
Closing date for responses is 17th June.
Good luck predicting grades for Y10 when they can change things halfway through the course.
www.gov.uk/government/uploads/system/uploads/attachment_data/file/518680/Setting_grade_standards_part_2.pdf