수업하다

The Korean verb 수업하다 (su-eop-ha-da) is a foundational term in the realm of education, primarily functioning as a compound verb formed from the noun 수업 (su-eop), meaning 'class' or 'lesson', and the auxiliary verb 하다 (ha-da), meaning 'to do'. At its core, it describes the act of conducting, giving, or holding a class. While it is often translated simply as 'to teach', it carries a more specific structural nuance than the general verb 가르치다 (ga-re-chi-da). When a teacher is in the classroom, actively delivering material and managing the educational environment, they are 수업하고 있다. It is the formal execution of a planned educational session.

Primary Agent

Usually the teacher or instructor who facilitates the learning.

Setting

Typically occurs in schools, academies (hagwons), or online platforms.

Duration

Implies a set period of time with a beginning and an end.

Understanding the etymology helps solidify the meaning. 授 (수) means 'to give' or 'to transmit', and 業 (업) means 'work', 'task', or 'study'. Therefore, the literal sense is 'to transmit the task of study'. This highlights the transmission of knowledge from an authority figure to a group of learners. In modern usage, it is not just limited to traditional school settings; a yoga instructor, a coding mentor, or a private tutor can all be described as performing this action. However, it is crucial to note that while a teacher does the class (수업하다), students typically 'listen to' or 'receive' the class (수업을 듣다/받다), though in casual contexts, students might say '우리 수업해' to mean 'We are having class'.

Formal Context

Used in official schedules and academic reports.

Informal Context

Used by students to describe their current state of being in a lesson.

In the hierarchy of Korean educational verbs, 수업하다 sits between the very general 가르치다 and the highly formal 강의하다 (to lecture). If you are at a university, a professor is more likely to 강의하다, whereas a primary school teacher 수업하다. This distinction reflects the level of interaction and the formality of the delivery. In a 수업, there is often more back-and-forth interaction, exercises, and classroom management involved compared to a one-way lecture.

Synonym Comparison

가르치다: Focuses on the transfer of skill. 수업하다: Focuses on the session itself.

Using 수업하다 correctly requires an understanding of both its grammatical structure and its social context. As a 하다 verb, it is incredibly versatile and follows standard conjugation patterns. However, the most important aspect of its usage is the subject-verb agreement in terms of honorifics. Because the person 'conducting the class' is often a teacher or professor, you will frequently see this verb used with the honorific suffix -시-, resulting in 수업하시다.

• Polite/Formal: 선생님께서 수업하십니다. (The teacher is teaching.)
• Polite/Informal: 선생님이 수업하세요. (The teacher is teaching.)
• Plain/Written: 교사가 수업한다. (The teacher teaches.)

When specifying the subject matter, you can use the particle -을/를 with the noun 수업 or simply use the subject as a modifier. For example, 수학 수업을 하다 (to conduct a math class). Interestingly, you can also use the particle -로 to indicate the medium or method, such as 영어로 수업하다 (to conduct a class in English). This is a very common phrase in international schools or language academies.

Another key usage involves the temporal aspect. Since a class is a time-bound event, 수업하다 is often paired with time markers. You might say 1시간 동안 수업하다 (to teach for one hour) or 오전 내내 수업하다 (to teach all morning). It also functions well with frequency adverbs like 매주 (every week) or 자주 (often).

In professional settings, 수업하다 is used to describe one's workload. A teacher might complain, '오늘 수업이 너무 많아요' (I have too many classes today), where '수업' acts as the noun, but the underlying action is the verb form. When describing the quality of the teaching, you can add adverbs: 열정적으로 수업하다 (to teach passionately) or 재미있게 수업하다 (to teach in a fun way).

Finally, consider the location. You use the location particle -에서 to indicate where the class is being held. 교실에서 수업하다 (to teach in the classroom), 야외에서 수업하다 (to teach outdoors), or 온라인에서 수업하다 (to teach online). This verb effectively anchors the educational activity to a specific time, place, and person.

The most common place to encounter 수업하다 is, unsurprisingly, within the Korean education system. From the moment a child enters 유치원 (kindergarten) until they graduate from 대학교 (university), this word is a constant presence. In a typical Korean school day, you will hear it in the morning announcements: '곧 1교시 수업을 시작하겠으니...' (We will soon begin the first period class...).

In the context of Hagwons (Private Academies), which are a massive part of Korean culture, you'll hear this verb used by staff and parents. A receptionist might tell a parent, '선생님이 지금 수업 중이셔서 전화를 못 받으십니다' (The teacher is currently in the middle of a class, so they cannot take the call). Here, 수업 중 is a noun form of the action, but it stems directly from the verb 수업하다.

School Environment

Announcements, teacher instructions, and student schedules.

Media & K-Dramas

School-themed dramas (like 'School 2013' or 'Sky Castle') frequently use this to depict the pressure of the classroom.

Workplace

Corporate training sessions or workshops are often referred to as '수업' in a broader sense.

On Korean variety shows or YouTube channels, you might see celebrities 'taking a lesson' in a new skill, like cooking or dancing. The instructor will say, '자, 이제 수업할게요!' (Okay, let's start the lesson now!). This usage is slightly more casual but still maintains the structure of a guided learning session. In the digital age, 인강 (internet lectures) are huge in Korea. Platforms like Megastudy or EBS feature instructors who 수업하다 to millions of students simultaneously.

You will also hear it in the context of private tutoring (과외). A tutor arriving at a student's house might say to the parents, '지금부터 수업 시작하겠습니다' (I will start the lesson now). This professional yet personal application of the verb is a staple of the Korean 'education fever' (교육열). Whether it's a formal lecture hall or a small living room, 수업하다 is the verb that defines the moment of knowledge transfer.

One of the most frequent errors for learners of Korean is the confusion between 수업하다 and 공부하다. While both relate to education, their 'direction' is different. 공부하다 is the internal process of learning and studying, whereas 수업하다 is the external, organized activity of the class itself. A student who says '나는 집에서 수업해요' (I do class at home) sounds like they are the teacher unless they are specifically referring to an online class they are attending.

Another common mistake involves the use of particles. Beginners often use 수업을 하다 and 수업하다 interchangeably, which is mostly fine, but they struggle with the recipient of the class. You don't '수업하다' to someone using the particle -에게 in the same way you 'give' a gift. Instead, you teach a class (수업을 하다) or you teach students (학생들을 가르치다). Mixing these up can lead to awkward phrasing like '학생에게 수업해요', which is less common than '학생들을 대상으로 수업해요' (conduct class targeting students).

Mistake 1: Role Reversal

Using '수업하다' when you are the student studying alone.

Mistake 2: Honorific Omission

Forgetting to use '수업하시다' when referring to a teacher's action.

Mistake 3: Overusing with '가르치다'

Using both in the same sentence redundantly.

Furthermore, learners often forget the passive/active distinction. In English, we say 'The class is being held', but in Korean, it's more natural to say '수업이 있다' (There is a class) or '수업을 진행하다' (to proceed with a class) if you want to avoid focusing on the teacher as the subject. Using 수업하다 implies an active agent (the teacher) is performing the action. If you say '수업이 수업해요', it's grammatically nonsensical (The class 'classes').

Lastly, be careful with the tense. Because 수업하다 describes a process, using the progressive form -고 있다 is very common. Saying '선생님이 수업해요' (The teacher teaches) sounds like a general fact, whereas '선생님이 수업하고 계세요' (The teacher is teaching) describes what is happening right now. Choosing the wrong tense can make your description of a current event sound like a habitual statement.

To truly master 수업하다, you must understand its relationship with other educational verbs. The most immediate neighbor is 가르치다 (ga-re-chi-da). While 수업하다 refers to the formal session, 가르치다 is the broader act of imparting knowledge or skills. You can 가르치다 someone how to ride a bike, but you wouldn't usually 수업하다 a bike lesson unless it's in a structured school setting.

강의하다 (gang-ui-ha-da)

To lecture. This is more formal and typically used in universities or for large-scale presentations. It implies a more one-sided delivery of information.

교육하다 (gyo-yuk-ha-da)

To educate. This is a very broad, often institutional term. It covers the entire system of upbringing and instruction.

지도하다 (ji-do-ha-da)

To guide or direct. Often used for sports coaching or thesis supervision. It implies a closer, more advisory relationship.

Then there is 학습하다 (hak-seup-ha-da), which is the formal version of 공부하다. It is often used in academic papers or AI contexts (machine learning is 기계 학습). While 수업하다 is the teacher's action, 학습하다 is the learner's action. Another interesting one is 교습하다 (gyo-seup-ha-da), which specifically refers to training in a particular skill, often at a private institute (교습소).

In a more modern context, you might hear 진행하다 (jin-haeng-ha-da), which means 'to proceed' or 'to host'. A teacher might say, '오늘 수업은 토론 형식으로 진행하겠습니다' (Today's class will be conducted/proceed in a discussion format). This focuses on the management of the class rather than just the teaching. Understanding these nuances allows you to choose the word that perfectly fits the formality and nature of the educational setting you are describing.