Hundreds of students at Rio Grande High School in Albuquerque walked out to protest the PARCC tests. In their march to another high school, they blocked traffic.

http://krqe.com/2015/03/03/protests-continue-against-parcc-test/

Some students complained that they would be denied a diploma based on this one test. One student said it was so difficult that not even the teachers could pass it.

Meanwhile the Albuquerque school board warned students who walked out that they would be given a zero and would face other consequences.