College classes fall into three broad buckets: general education courses that every student takes regardless of major, introductory courses that launch you into a specific field, and electives you choose based on your interests. Most bachelor’s degree programs require around 120 credit hours spread across all three categories, so you’ll experience a wide mix over four years.
General Education Classes
Nearly every college requires a core curriculum designed to give you a foundation in writing, math, science, humanities, and social sciences before you dive deep into your major. These courses typically fill your first two years and account for roughly 40 to 60 credit hours. The specific titles vary by school, but the categories are remarkably consistent.
English and writing. Almost universally required. You’ll take one or two semesters of composition (often called English Composition I and II or College Writing) focused on building essays, constructing arguments, and citing sources properly.
Math and statistics. Options range widely depending on your intended major. Common choices include Introduction to Mathematical Modeling, Precalculus, Calculus I, and Introductory Statistics. Students who aren’t headed into math-heavy fields often satisfy this requirement with a course like Mathematics of Decision Making or Elementary Biostatistics.
Natural sciences. You’ll typically need two science courses, one in the physical sciences and one in the life sciences, and at least one must include a lab component. Physical science options include Astronomy of the Solar System, General Chemistry, Introduction to Physical Geography, Introduction to Weather and Climate, and introductory physics. On the life science side, look for titles like Concepts in Biology, Principles of Biology, Ecological Basis of Environmental Issues, and Organismal Biology. Some schools get creative here: one university offers a life science course called Life on Six Legs, which is an entomology class about insects.
Humanities and arts. These courses cover history, philosophy, literature, languages, and the arts. Expect options like History of Western Society, World Civilizations, Introduction to Anthropology, and Introduction to Africa. Foreign language courses (Elementary French, Elementary Chinese, Elementary German, and many others) often count toward this requirement too.
Social sciences. Introductory Psychology, Introduction to Sociology, Principles of Economics, and American Government are standard fare. Most schools require around nine credit hours in this area, which means three courses.
Quantitative reasoning. Some colleges separate this from the math requirement. Courses that satisfy it include Symbolic Logic (a philosophy course focused on formal reasoning), Introduction to Data Science, Introduction to Programming with Python, and even Strategic Visual Thinking. The goal is to build analytical skills, not necessarily to do more algebra.
Introductory Courses for Popular Majors
Once you’ve chosen a field of study, you’ll take entry-level courses that introduce the core concepts of that major. These are usually numbered in the 100 or 200 range and serve as prerequisites for everything that follows. Here’s what the gateway looks like in several popular fields.
Business. Principles of Accounting, Introduction to Business, Principles of Microeconomics, and Principles of Macroeconomics are typical starting points. Business majors also take introductory courses in management, marketing, and business law as they progress.
Computer science. You’ll start with a course like Computing Essentials or Introduction to Computing and Programming, often taught in Python or Java. Calculus I is usually required alongside these, since higher-level CS courses rely on mathematical foundations.
Psychology. Introduction to Psychology (often called Psych 101) is the universal starting point. From there, students branch into Research Methods in Psychology and Introductory Statistics for the Behavioral Sciences.
Nursing. Anatomy and Physiology I and II, Microbiology, and Human Growth and Development are early requirements. Nursing programs also include clinical courses where you practice skills in a hospital or simulation lab setting.
Engineering. Physics I and II, Calculus I through III, and Introduction to Engineering Design form the foundation. Many programs also require a chemistry course and a computer programming course in the first year.
Electives You Might Not Expect
Electives are courses you pick freely to fill remaining credit hours or explore something outside your major. This is where colleges get inventive. A few real examples from universities around the country:
- The Geography of Wine at Arizona State University, where students study wine regions, grape variations, and the role of climate and policy in winemaking, with tastings included for students 21 and older.
- Paintball Kinesiology at Texas A&M University, an activity course in the School of Education and Human Development designed for beginners.
- Vampire: Blood and Empire at the University of Pittsburgh, a year-round course that examines vampirism through movies, music, novels, and Central European folk tales.
- DJing and Turntablism at Berklee College of Music, covering scratching, beat matching, mashups, and using a turntable as a musical instrument.
- Sabermetrics 101: Introduction to Baseball Analytics at Boston University.
- Ice Cream Short Course at Penn State, where students learn about ice cream from cow to cone, including manufacturing safety, flavoring, and nondairy frozen desserts.
- Avalanche Level 1 and Rescue at Fort Lewis College, part of a Snow and Avalanche Studies certificate where students can earn certifications from the American Institute for Avalanche Research and Education.
These aren’t jokes or throwaways. Many of these courses satisfy general education requirements (the zombie biology class at Saint Xavier University counts toward a science credit, for instance) while making the subject matter more engaging.
How College Classes Are Structured
Beyond the subject matter, college classes come in different formats that affect how you spend your time.
Lectures are the most common format, especially for first-year courses. A professor speaks to a large group, sometimes hundreds of students, in a theater-style hall while you take notes. Interaction is limited, and your grade often depends heavily on exams.
Labs accompany science lecture courses. You apply what you learned in the lecture by doing hands-on work: running a chemistry experiment, dissecting a specimen, or writing a computer program. Labs are usually scheduled as a separate session, often two to three hours once a week, and carry their own credit hour.
Seminars are small, discussion-based classes, typically capped at 15 to 25 students. Many colleges offer first-year seminars specifically designed to help new students build study habits, learn to write at the college level, and adjust to the expectations of higher education. Upper-level seminars in your major tend to focus on a narrow topic and require significant reading and participation.
Studios are the norm in art, architecture, and design programs. You work on projects during class time with an instructor circulating to give feedback.
Online and hybrid courses have become widely available. Online courses deliver all material through video lectures, discussion boards, and digital assignments. Hybrid courses split time between in-person meetings and online work.
How Many Classes You Take Per Semester
A full-time student typically enrolls in 15 credit hours per semester, which works out to about five courses. Each course is usually worth three credit hours, though science courses with labs often carry four. At 15 credits per semester over eight semesters, you hit the 120 credits most degrees require.
Some students take 12 credits (four courses) to maintain full-time status at a lighter load, while ambitious students push to 18 credits (six courses) to graduate early or fit in a double major. Your first semester will likely be a mix of two or three general education courses, one introductory course in your intended major, and a first-year seminar or elective.