# 18.901: Introduction to Topology

## Table of contents

- Course Info
- Realistic Prerequisites
- Subject Matter
- Course Staff
- Lectures
- Problem Sets
- Exams
- Resources
- Grading
- Advice to Future Students

## Course Info

Class Size | 29 |

Hours/Week | 9.4 (17 responses) |

Instructors | Anthony Conway |

Overall Rating | 6.3/7.0 |

## Realistic Prerequisites

- Knowledge of proof-writing and abstract reasoning is a must.
**18.100x**is a soft prerequisite, and some experience with group theory in*18.700/18.701*is helpful but not necessary.

## Subject Matter

- The subject matter is very
**theoretical**, with the first half of the class covering point-set topology, generalizing some notions from real analysis. Over the second half, algebraic topology is introduced to prepare students for taking higher-level topology courses, such as 18.905: Algebraic Topology I.

## Course Staff

**Supportive and well-prepared.**The professor is very kind and approachable. The professor was happy to answer questions after class and was responsive over email.

## Lectures

- Students found lectures helpful in introducing new concepts, but
**fast-paced**. - Reading
**lecture notes**helped answer questions, and**problem sets**helped solidify students’ understanding.

## Problem Sets

- Problem sets were
**long**. - Some students found the problem sets to be very instructive and useful in understanding the material.
- Others felt that the problems were repetitive and uninspiring, especially with definition questions on point-set topology near the beginning of the course.
- Collaboration and office hours were helpful.

## Exams

- The exams were fair and straightforward applications of the material. Students found that lectures and psets prepared them well.
- The professor was transparent about what questions to expect (one problem from lecture, one from a pset, and one new). However, some students found this to encourage memorization.

## Resources

- The professor posted comprehensive typed lecture notes. Students found them extremely useful and the main resource to reference.
- The class followed Munkres’
*Topology; a first course*for point-set topology and the first part of Hatcher’s*Algebraic topology*for the algebraic topology half. *Office hours were helpful.

## Grading

- Students felt that grading was
**fair**and**reasonable**. Cutoffs were stricter than expected (90=A, 80=B, etc. with no +/- qualifiers), and were announced before the drop date.

## Advice to Future Students

“I highly recommend taking this course!! It is super fun and very interesting.”“Work through as many examples as possible!”