299A.6 Failure to make adequate progress."If the results of evaluations, administered to a child of compulsory attendance age who is under competent private instruction, indicate that the student has failed to make adequate progress, the parent, guardian, or legal custodian shall cause the child to attend an accredited public or nonpublic school at the beginning of the next school year unless, before the beginning of the next school year, the child retakes a different form of the same evaluation, or another evaluation from the approved list of tests or assessment tools recognized by the department of education, and the results indicate that adequate progress has been made, the child has demonstrated adequate performance in the opinion of an evaluator and documented in a report under section 299A.4, subsection 7, or the director of the department of education, or the director’s designee, grants approval for competent private instruction to continue under a plan for remediation."