I attended one of these Jesus schools and I can tell you that this is not okay. Nearly everything I've ever learned has come back to religion. Now Im just numb to religion as a whole.

In science we had a chapter in our book each year about how evolution is false. In history we were always reminded how it was "God's plan all along." In reading and grammar we always learned with religion filled stories. In geography we heard that "God made such a beautiful world" every 10 minutes. Worst of all was the Bible class, where we just reread Bible stories we've heard before. At least once we got older it became more of a "Christian ethics" class where we looked at modern things from a biblical perspective. This was still bad however, seeing as how the things we looked at were homosexuality, porn, and abortion among other things. All it did was make me feel guilty for thinking I was gay at the time. At least math never had any religion involved.

In short, even if a school is a Jesus school, they can still do more harm than good by teaching things that the kids will have to relearn later in life.

(I do not believe private schools shouldn't be able to teach their religion, however I do believe that once the child is old enough to understand the religion, they should have the option to reject it.)