How do you feel when you have exams coming up? Confident, worried or a bit stressed?
In a survey for Newsround by ComRes, 87% of children aged 10 and 11 said they feel pressure to do well in their Standard Assessment Tests.
Sats begin this week for hundreds of thousands of children in England. They are used to measure how children in year 2 and 6 are doing in primary school.
Hayley has been looking in to the survey's findings and speaking to school pupils to see how they are feeling. Check it out.