For R.C. Sproul Jr., the issue of education is always the heart and education is discipleship. Looking to the Shema (Deuteronomy 6:4-9), he argues that parents are the only fit, God-appointed teachers of their children. This responsibility goes beyong teaching kids to read and write and embraces training their hearts and minds in godliness.
He seems to imply morality and doctrine are the only appropriate topics for study, and that academic study is irrelevant at best, and at worst pernicious. He insists that's not the case, that academic excellence is a logical result of the pursuit of spirituality, but often his protestations fall flat.
Especially when he sets up this false dichotomy—would you rather have a child who graduates Harvard summa cum laude to become involved with the Council for Secular Humanists, or one who never finishes high school and becomes a godly garbageman leading his family in righteousness? He hurriedly admits we don't have to make that choice, but then we wonder why he brings up such an absurd analogy in the first place.
Such moments are common when reading When You Rise Up. One feels Sproul wants homeschooling to be right because his own kids were homeschooled. He camps on Deuteronomy 6:4-9, referring to the verses whenever he's at a loss, and recycles arguments over and over like an Irishman protesting his sobriety.
There's a lot to agree with. Sproul affirms all subjects are objective because when properly taught they evidence God's truth, and his position that education is mostly about raising children with godly character is excellent—we simply hope the case will be argued better in the future, with less dogmatism and more reasonable and Scriptural proofs.