They ruled that the system of local property taxes in which just about every district in the state imposes the same tax (the maximum allowed $1.50 per $100 of valuation) is unconstitutional. The Texas Constitution specifically outlaws a statewide property tax. They got that part right.
Then they ruled that the public school system is adequate. This point is arguable, but I can understand that decision. But they also ruled that facilities funding is equitable. This is beyond ridiculous. It is indefensible and, in the long run, this Court will lose a lot of credibility with the public on this one. There is no reasonable definition of equitable that could allow for the rich suburban palaces of learning (see Highland Park) and the dilapidated hovels that pass for "facilities" in some of Texas's rural and urban communities to be considered as substantially equal. It's a mind-bending stretch-- a stretch that makes this state's High Court seem, well, high. Or just stupid.
Still, because the Supremes ruled that the basic mechanism for funding schools (property taxes) is unconstitutional, the whole system will have to be overhauled. What comes out the other end of this judicial-legislative death dance is anyone's guess. My hunch is that I won't like it. Whatever that solution might be, though, the Court gave the Lege until June 1 to figure it out.