The government has announced new plans which could mean primary school children in England will start taking tests at a younger age.
It could also mean that all pupils from the age of 11 will be ranked on a national grading scale - this means every pupil would be put in different bands according to their achievements.
Deputy Prime Minister Nick Clegg and Schools Minister David Laws announced the plans as part of a big report into how education is run. The changes could be brought in to schools in 2016.
You've been sending your comments in all day, so we put a couple of them to Nick Clegg, and Newsround's Ricky asked him a question too. Check out the video.