When I was homeschooled we used A Beka, which is a Christian curriculum for schools. Super Christian, super religious shit. The history book noted that MLK lost his way once he started criticizing Vietnam and advocating for socialism, it was really hard on Bill Clinton, etc.
But later in middle school I played basketball at a Baptist school, and wound up taking a science class there. They used Bob Jones' curriculum and it was even worse. Bill Clinton was the most ungodly US president of all time, according to it, and the 8th grade teacher's guide also had a section about asking children whether they believed he was going to heaven or hell.