It's funny you should mention critical thinking skills and Texas in the same post. Here's a quote from the Republican Party of Texas in its 2012 platform (PDF: Do a word search under "critical").
"Knowledge-Based Education – We oppose the teaching of Higher Order Thinking Skills (HOTS) (values clarification), critical thinking skills and similar programs that are simply a relabeling of Outcome-Based Education (OBE) (mastery learning) which focus on behavior modification and have the purpose of challenging the student’s fixed beliefs and undermining parental authority."
It goes to show that JWs are not the biggest crazies on the block.
There is also a homeschooling movement that has grown amongst conservatives with fundamentalist religion influenced text books.