In my education studies, the concept of literacy splits into two categories: content and disciplinary. The content literacy is what we most associate with school: facts, theories, questions, or anything in the general realm of remembering. In this Age of Information (Overload?), however, disciplinary literacy--that is, understanding how their soon-enough to-be-colleagues and researchers communicate within their disciplines. I summarize "math as a language", then, as a focus on developing a sense for when an answer is reasonable to have confidence in the work needed to find the answer with appropriate precision.