In the midst of the coronavirus pandemic, teachers have had to rethink pretty much everything they do with students—and that includes how they give math tests. With many students working remotely, ...

First, we need to estimate the pre-test probability that asymptomatic Massachusetts residents have Covid-19. We know that in the state approximately 2% of all tests for SARS-CoV-2, the virus that ...

How do I know what math course I should take? "Prerequisite" is a term for "something necessary as preparation for something else." In the case of math placement, prerequisites come in the form of ...