Limits and Continuity: How to Read, Compute, and Test Them

This English Calc I lecture builds a working method for limits and continuity: read nearby behavior, use direct substitution, simplify a 0/0 result, compare one-sided limits, and apply the three continuity conditions.

The definitions and examples follow OpenStax Calculus Volume 1: The Limit of a Function, Continuity, and The Precise Definition of a Limit.