Let me put it another way. If the starting point is that "targeting schools and killing large numbers of civilians is a war crime," then literally any of the military actions that the IDF has carried out that didn't target schools or kill huge numbers of civilians would generally qualify as 'not a war crime' on that basis. And while you could add other protected areas like 'hospitals' to schools, I would think most people would recognise that would still leave a vast array of actions that did neither of those things.
Which would make your question essentially, "list military actions that don't target schools or kill huge numbers of civilians." But that seems like too broad a question - surely everyone agrees there are military actions that don't target schools or kill large numbers of civilians? - to be of any use.
Which is why I asked if you agree that the IDF can engage without targeting schools or killing large numbers of civilians. Because if you do, then why you do need someone to describe specific actions that don't do that? "List everything that isn't a war crime," seems a lot less pertinent than, "list things that are a war crime."