It is a good start, and it's becoming more critical as normal people have to sift through more and more orphaned factoids each day. When I was going through school, the most important question to ask was supposed to be "Why?" It's becoming more apparent to me that a more useful question to teach students is "How do you know?"

That can be covered in some depth in an IB class, but just being in the habit of asking that from the age of 5 is going to do more good than a structured curriculum once you're 16.