It may be a 180-day school year, but for local students in grades 3-8, this is the week that matters most.TCAP testing began yesterday in Warren County schools and goes through Friday for most students. The standardized tests evaluate students in a variety of subjects, but the two most important are reading and math, which determine if local schools are making adequate yearly progress according to federal guidelines.“These are high-stakes tests,” said Bobby Cox, assistant director of schools in charge of teaching and learning. “There is a lot riding on this.