Texas is king of standardized testing. High school is, for the most part, "here's how to pass this test. Take this test. Here's how to pass this test." It's no wonder that we do so abysmally compared to other states and countries in the real world: there's no test for which to be taught. We're lost.
TAAS, ITBS, TAKS, AP, CLEP... we know 'em all.