MIT 微积分重温：单变量微积分·前言

The preface to Herb Gross's MIT OpenCourseWare 'Calculus Revisited: Single Variable Calculus', an older black-and-white lecture series. It introduces his approach to teaching calculus from the basics.

Why HN likes it: HN recommends Herb Gross as an unusually clear teacher whose explanations make calculus click for people who struggled elsewhere.

“The way he explains things just clicked, after numerous failed attempts to learn from other sources.”