Many parents worry these days about how to explain Donald Trump to their children, fretting that the Republican front-runner’s crass language and occasional disregard for human dignity might set a bad example. But Trump’s latest barrage of jaw-dropping statements is also an opportunity for education. (Education is, as Trump recently, perplexingly claimed, one of the top three responsibilities of government.)

Try this topical word problem to share with your kids: Consider the seven most horrifying statements that Donald Trump has made in the past 36 hours, and determine the rate per hour at which he said something that should automatically disqualify him from the presidency (but will not). Round to two decimal places and show your math.

March 29, 4:40 P.M.: Trump tells reporters aboard his plane in Janesville, Wisconsin, that he will not fire his campaign manager, Corey Lewandowski, who was charged with battery for allegedly manhandling former Breitbart reporter Michelle Fields. “How do you know those bruises weren’t there before? I’m not a lawyer,” he argued, lamenting a world in which the accusations of women could tarnish such fine men as Lewandowski. “Don’t you think she would have yelled out a scream?”

March 29, nine P.M.: Trump appears at a CNN town hall in Milwaukee and suggests that Fields could have tried to attack him with either a “little bomb” or a “knife,” justifying Lewandowski’s actions. “She wasn’t dragged to the ground and all of the things that she said,” he told a bewildered Anderson Cooper, adding that he would stand by Lewandowski. “She’s not a baby, O.K.?”

March 29, minutes later: Trump argues that America should just let other U.S. allies, such as Japan and South Korea, have nuclear weapons, since “it’s going to happen anyway.”

“It’s only a question of time,” Trump shrugged, listing China, Russia, Pakistan, and North Korea as countries that possess the world-ending weapons, and fatalistically suggesting Iran would have one soon, too. To combat this, Trump argued, more countries should arm themselves as well, so the U.S. wouldn’t have to waste so much money protecting them. “Now, wouldn’t you rather in a certain sense have Japan have nuclear weapons when North Korea has nuclear weapons?” he asked.

March 29, minutes later: Trump smashes his former pledge to support the eventual Republican nominee, setting up the scenario he alluded to weeks earlier in which he said there could be “riots” if he did not emerge from the G.O.P. convention this summer as the nominee.

March 30, mid-afternoon: During a rally in Appleton, Wisconsin, Trump suggests doing away with the Geneva Conventions, a 152-year-old set of international treaties governing the treatment of wounded soldiers and prisoners of war. “The problem is we have the Geneva Conventions, all sorts of rules and regulations, so the soldiers are afraid to fight,” Trump said, arguing that since the Islamic State “can chop off heads,” the U.S. should start to ratchet up its own response. “I think we’ve got to make some changes, some adjustments.”

March 30, five P.M.: During a pre-taped “town hall” on MSNBC, host Chris Matthews tries to get Trump to say he will never use nuclear weapons in Europe. This is their exchange, taken from the transcript verbatim:

Matthews: How about Europe? We won't use it in Europe?