The instagram link has for source https://www.iranintl.com/en/202601082682, which dates from the protests and not the war. It's the proof that one school has once been used by police, not that a missile strike has been justified by a photo :

Your second article has this part :
It doesn't give any explanation nor name of schools, i couldn't find anything while reverse searching the picture, and the only thing i found about the Coordinating Council of Iranian Teachers’ Trade Associations is that article which seems to indicate that iranintl voluntarily attributed a citation from before the war as if it described a current situation.

Please correct me if i've made a mistake.

I also searched for some kind of photographic justification by either the u.s.a. or Israel for their strikes on civilian buildings, but haven't found a single one.

So i wouldn't make a very good journalist :
- no confirmation of the number of civilian buildings put forward by the iranian government ;
- no confirmation of a military presence when these buildings were targeted.

Edit : I found this, recent enough and probably the best we'll have : https://www.hra-iran.org/wp-content/uploads/2026/03/FINAL-Civilian-Harm-in-Iran-after-One-Month-of-War.pdf

HRA has verified damage to 60 hospitals or medical centers, 44 schools, and 129 residential buildings, while government estimates indicate more than 16,000 homes were damaged.

Again, i don't see Iran targeting schools, hospitals, or centuries-old historical buildings