Some educators said constantly using standardized tests limited teaching.
"I would have to say that the most frustrating part of teaching would be all of the testing," said Dianna, an elementary school teacher from Nebraska. "It won't let kids be kids and it seems as if you are always doing it."
After Ronald Reagan released a report condemning American public schools for failing to keep students competitive in math and reading with those in foreign countries, the country began using standardized tests to track students' learning.
Today, students take an average of 112 standardized tests between kindergarten and the 12th grade, according to a 2015 study. Critics say over-testing students does not account for differences in the way children learn and socioeconomic factors driving test performance down.
"It is awful dealing with the pressure to teach to standardized testing," said a high school teacher from Texas who wished to remain anonymous.
"It's scary knowing that if you don't teach well, your kids will suffer for maybe years," said an elementary school teacher in Texas who wished to remain anonymous.