As an Iranian-American that's familiar with the regime, I would take that with a grain of salt. I saw this being reported from the Iranian regime themselves and they know how to manipulate optics and media really well. It's possible, but needs verification. I would also not put it past Iran to build their military infrastructure around schools intentionally (similar to Hamas with hospitals) in the hopes that it has this exact effect. Of course that does nothing to take away from the tragedy of innocent people dying and I'm not trying to negate that in any way, just something to point out.