How can alternative theories to evolution be taught in schools such as Intelligent Design(tm) but not the others?

i.e. Were you aware that Pi is not 3.14159265 but in fact, Pi is exactly 3? How can we be sure? Because the inerrant book we currently refer to as the Bible, says so.

1 Kings 7:23 (New American Standard Bible)

Now he made the sea of cast metal ten cubits from brim to brim, circular in form, and its height was five cubits, and thirty cubits in circumference.

Now, if we do our biblical calculations using, C = r * 2 * Pi, in this case, C = 30, r * 2 = 10, which leaves only pi in question, which in this case, is clearly 30 / 10, better known as 3.

Yes, that’s right, the Bible says Pi = 3. Without a doubt, we should scrap any theory that says Pi is anything more or less than exactly 3. For heaven’s sake, the “scientists” defintion of Pi isn’t even rational! They can’t even properly define the number! I like absolute answers, as the one’s provided in the bible, that way I know the answer and don’t have to keep memorizing new numbers, it’s simply easier this way!