If you understand the definition of a mathematical function, a good way to judge it is that any line drawn parallel to the y-axis intersects with the values in the function’s curve only once. The same ...

Measure your hand. Create and use a line plot of hand span data to answer questions. Warm up with a Mystery Math Mistake to find the mistake made in counting up on a number line to subtract. Notice ...

MATH 51 is a rite of passage for many Stanford students. And over the years, it has acquired a reputation as a challenging course (which may now be outdated given the major overhaul it has undergone).