KANSAS CITY, Mo. (AP) — Missouri officials are proposing changes after aspiring teachers struggled on new educator certification exams, particularly those for math and science.

Fifty-five content tests measure readiness to be everything from classroom teachers to superintendents. Newly released data shows that on six of the tests, fewer than half of the test-takers passed.

The proposed changes include giving test-takers more time and fewer questions on some of the exams.

The changes will be discussed Tuesday at a Missouri Board of Education meeting.

Issues arose after the state in September switched certification exams. Instead of taking a teaching test known as Praxis II, students now must fare well on a more rigorous assessment called the Missouri Content Assessment. Through April 12, more than 7,100 of the tests were taken.