As the report took shape, Mr. Trump, who has repeatedly promised his loyalty to both the Second Amendment and the N.R.A., relaxed some of the statements he made on the greater need for gun control after the Marjory Stoneman Douglas shooting. Instead, he settled on promoting the idea of training and arming school personnel.

The commission also recommended that schools continue to put “character education” programs in place and highlighted several models for improving mental health resources. It also urged federal agencies to help states address cyberbullying, an advocacy issue of the first lady, Melania Trump.

“There is no universal school safety plan that will work for every school across the country,” the report said. “Such a prescriptive approach by the federal government would be inappropriate, imprudent and ineffective. We focused instead on learning more about, and then raising awareness of, ideas that are already working for communities across the country.”

Besides Ms. DeVos, the other members of the commission included Matthew G. Whitaker, the acting attorney general, who took the place of Jeff Sessions after he resigned; Alex M. Azar II, the secretary of health and human services; and Kirstjen Nielsen, the secretary of homeland security.

The administration also focused on an Obama-era policy that advised schools on how to discipline students in a nondiscriminatory manner and examine education data for racial disparities that could flag a federal civil rights violation. Though the guidance is nonbinding, critics have argued that the edict pressured districts to keep policies that allowed dangerous students to stay in schools.

A senior administration official said the plan would be rescinded because research had found a “recurring narrative” that teachers and students felt threatened by the idea that people “trending toward violent behavior were left unpunished or unchecked.”

“The guidance sent the unfortunate message that the federal government, rather than teachers and local administrators, best handles school discipline,” the commission wrote. “As a result, fearful of potential investigations, some school districts may have driven their discipline policies and practices more by numbers than by teacher input.”