本书提供了将反例作为教学工具用于初级微积分学习的资源，旨在提升单变量微积分课程的学习体验。本书适合学习微积分课程及相关知识的学生阅读参考。Counterexamples in Calculus serves as a supplementary resource to enhance the learning experience in single variable calculus courses.This book features carefully constructed incorrect mathematical statements that require students to create counterexamples to disprove them. Methods of producing these incorrect statementsvary. At times the converse of a well-known theorem is presented. In other instances crucial conditions are omitted or altered or incorrect definitions are employed. Incorrect statements are grouped topically with sections devoted to: Functions, Limits, Continuity, Differential Calculus and Integral Calculus.This book aims to fill a gap in the literature and provide a resource for using counterexamples as a pedagogical tool in the study of introductory calculus.