Kids across England start their Sats exams on Monday, but some people are worried the tests are putting pupils under too much stress.
Only pupils in England have to take Sats, and lots of people say the tests take too much time and distract you from learning.
They worry things that aren't tested in Sats are being pushed aside just so pupils do well in tests.
Kids are apparently also put off tests by taking Sats.
The BBC got kids in two schools to draw creatures they thought represented tests.
Kids at a school where they take Sats drew very scary monsters, but kids at a Welsh school, where there were no Sats, drew friendly, fun creatures.