competence, or qualifications of the teacher....” N.D. Cent.Code § 15-47-38(5) (1993). The statute provides that “[a]t the meeting with the board the teacher may then produce such evidence as may be necessary to evaluate the reasons for nonrenewal, and either party may produce witnesses to confirm or refute the reasons. The administrator shall substantiate the reasons with written or oral evidence.... ” Id.
We find Flath’s contentions unpersuasive. Section 15-47-38(5) does not require a school board to produce witnesses. Nor does subsection (5) require the Board to sustain its reasons for nonrenewal. See Lithun v. Grand Forks Pub. Sch., 307 N.W.2d 545, 553 n. 6 (N.D.1981) (noting difference in school board’s evidentiary burden of proof in dismissing teacher under 15-47-38(2) and non-renewing teacher’s contract under 15-47-38(5)).
Subsection (5) specifically states that the reasons for nonrenewal may be established by oral or written evidence. The evidence presented at the hearing included Flath’s unsatisfactory teacher evaluations, complaints from parents criticizing Flath’s discipline techniques, and documentation of the action taken by the administration as a result of the complaints. In addition, Flath admitted that she had struck one of the students. We find this evidence sufficient to support the nonrenewal of Flath’s contract.
Whether or not section 15-47-35(5) required the Board and Carter to produce witnesses to substantiate the charges against her, Flath was provided all the process due her under the Fourteenth Amendment. See Schuler v. Univ. of Minnesota, 788 F.2d 510, 515 (8th Cir.1986) (university’s noncompliance with student grievance procedure irrelevant if constitutionally adequate process is otherwise provided), cert. denied, 479 U.S. 1056, 107 S.Ct. 932, 93 L.Ed.2d 983 (1987). To satisfy pretermination due process, a public employee is entitled to notice of the charges, an explanation of the evidence, and an opportunity to be heard. Cleveland Bd. of Educ. v. Loudermill, 470 U.S. 532, 546, 105 S.Ct. 1487, 1495, 84 L.Ed.2d 494 (1985). Generally, something less than a formal adversarial hearing is required. Demming v. Housing & Redevelopment Auth., 66 F.3d 950, 953 (8th Cir.1995). Rather, the purpose of the pretermination hearing is to ensure that “‘there are reasonable grounds to believe that the charges against the employee are true and support the proposed action.’ ” Id. (quoting Loudermill, 470 U.S. at 546, 105 S.Ct. at 1495). We have held that “ ‘informal meetings with supervisors’ ” are sufficient to satisfy the due process hearing requirement. Schleck v. Ramsey County, 939 F.2d 638, 641 (8th Cir.1991) (quoting Riggins v. Board of Regents of Univ. of Nebraska, 790 F.2d 707, 711 (8th Cir.1986)). Moreover, we have rejected a discharged employee’s argument that a university grievance procedure was constitutionally inadequate because it would not have granted her the opportunity to confront or cross examine witnesses at a post-termination hearing. Riggins, 790 F.2d at 711-12.
Flath received notice of the contemplated nonrenewal and an explanation of the charges against her. She had an opportunity to respond to the charges at the nonrenewal hearing. She was thus afforded all the process she was due. See Demming, 66 F.3d at 954; Riggins, 790 F.2d at 710-11.
III.
Flath next asserts that the nonrenewa! of her contract violated her First Amendment rights. Specifically, she claims her contract was not renewed because she criticized Carter in a school improvement survey and because she voiced concerns about Carter at a GEA meeting. The district court granted summary judgment for defendants on this claim, stating that “nothing has been shown which could rise to the status of a violation of a constitutional or federally protected right.”
We find it unnecessary to decide whether Flath’s statements constituted protected speech, for, assuming that they did touch on matters of public concern, Flath has failed to show that her nonrenewal was substantially motivated by these statements. Carter presented no evidence regarding these incidents at the nonrenewal hearing. Moreover, the Board had already agreed with Flath that