DENTON, Texas (AP) _ North Texas State University is offering a guarantee: If school districts are not satisfied with its education school graduates, the districts can send the teachers back.

The school will re-train any incompetent teachers it graduates through a quality assurance program scheduled to start in May, university spokeswoman Charlotte Guest said Thursday.

''Throughout our 96-year history we always have had a commitment to quality teacher preparation,'' said NTSU Chancellor Alfred Hurley. ''If we did not have the utmost confidence in our teacher education program, which has the highest admission standards in the state, we could not offer this kind of assurance to school districts.''

All NTSU education graduates receiving Texas teacher certification - about 400 a year - will be covered by the program, Guest said.

The school's guarantee came three days after Texas teachers finished the first round of competency testing mandated by education reforms. State officials predict about 5 percent of the state's 200,000 teachers will fail that test and a second-chance test in June.