A Florida high school teacher has resigned after it was discovered he left test answers on the walls of his classroom during district exams, but he claims he didn't know it wasn't allowed.
Isaac Anderson, a 40-year-old social studies teacher at Spoto High School in Riverview, Fla., informed administrators that he believed test security rules applied to only state exams — not ones issued by the district, according to the Tampa Bay Times.
The investigation was initially launched by school administrators when they realized students in Anderson's U.S. history class scored higher than on previous exams. Following the investigation, Anderson resigned in April.
According to the Times, Spoto received a grade level of "C" for having a graduation rate lower than 85 percent. Due to their low ranking, the Hillsborough County school gives students common assessment exams every semester to help prepare them for district exams in December.
It was during this December exam that Anderson's students improved their typical score, of less than 50 percent, to 59.7 percent.
Officials investigating the matter were aided by four of Anderson's students, two of whom claimed he gave two or three answers to the class because he did not cover the material in his lessons. The other two students claimed the teacher left posters on the walls of the classrooms that gave away answers to the test.
Anderson told investigators he didn't think providing the answers to test questions "was a big deal."
A district spokesperson provided the following statement to News Channel 8: "Testing is an important way to gauge student learning. We take that seriously because it helps us make sure we are supporting students in the best way possible. This was an isolated issue with one teacher who has since resigned from the district. Any allegation that tests were not done properly are thoroughly investigated by our district."
Read more from Yahoo Lifestyle: