The past couple of years have been challenging for Iowa’s 327 public school districts. Parents have become very engaged with their schools — and enraged, too, at times. This has revolved around masks and vaccines, what is being taught or not taught, the content of library books, and an assortment of other concerns. But in some communities, school leaders have greatly misjudged the angst of parents, grandparents and other taxpayers. Look at the aggressive campaigns for school board seats and the ouster of some incumbent board members.