I indicated that anything in the vicinity was "collateral damage" and as noted by the 2nd link with the NPR analysis, it appeared that the compound may have been hit multiple times (or at least there was enough debris from the initial blast to damage every building in the compound). One article I saw quoted one of the Iranian leadership calling the hit a "double tap", which was an initial hit and then coming back around and hitting again (something that has been confirmed that the U.S. has done to those little speed boats).
And as I noted, the compound itself was still under construction where I think even one of your links showed a "ribbon cutting" on what was a new clinic. So it's possible that the "school building" was hosting both but would be designated as the "girls school" until another school was built as articles were mentioning "housing" that was also under construction.
Al Jazzera did an exhaustive analysis of the compound as well - i.e., most there were families of current military soldiers. Reuters also did an analysis and even described the school's website that had been active for at least a year, with photos of girls in uniforms all lined up.
And from here - https://iranwire.com/en/features/149926-what-happened-at-the-bombed-school-in-minab/
(snip)
Over time, however, it became clear that the school also had male students, or at least that some of the victims were boys.
On March 3, Mehdi Keshtdar, head of the Judiciary-affiliated Mizan News Agency, stated that 110 students had been killed in the attack—66 boys and 54 girls. On the same day, the Iran newspaper, citing Minab Governor Mohammad Radmehr, published a handwritten list of victims that included 44 boys and 76 girls.
Neither account clarified why or how such a large number of boys were reportedly inside a girls’ school during the early hours of the morning.In Iran, schools are strictly segregated by gender, making it unlikely that the boys were even preschool-aged - particularly given that Shajareh Tayyibeh schools are considered to follow more conservative religious standards.
(snip)
This is what I figured - that it would have been separated by gender, as many of the most conservative religions do in addition to the Islamic ones. It's possible that the boys attended a school "off compound" and were at the complex for some reason since Ramadan is still underway - OR - the boys were separated within the school building, in a separate section or on a separate floor.
As a side note, the NYT mentioned a boys school in Abyek outside of Tehran, where the target was supposed to be a nearby comm tower, but the school was damaged by the blast and at least one child was killed -
https://www.nytimes.com/2026/03/09/world/middleeast/iran-video-explosion-boys-school.html
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