What is true instructional rigor? What are classroom-based strategies that are rigorous?Instructional rigor has become a controversial topic. Educators disagree about the word itself, citing a dictionary definition of harsh or rigid. A friend of mine points out that if you look it up, the word rigor falls between rigamarole and rigor mortis. True instructional rigor, however, is centered around student learning. Rigor is "creating an environment in which each student is expected to learn at high levels, each student is supported so he or she can learn at high levels, and each student demonstrates learning at high levels (2008)."