Teacher Job Description

A teacher's core job is turning a set of state standards into a year of lessons that a specific group of students can actually learn from, then proving they learned it. Everything else on the schedule, from bus duty to parent emails, orbits that task.

The job changes with the grade level

Teaching is one title covering three fairly different jobs. In elementary school, a teacher usually runs a self-contained classroom: the same students all day, every core subject, plus the routines that make a room of young children work, like lining up, transitions and reading groups. Middle school teachers may belong to a grade-level team that shares the same students across English, math, science and social studies, so coordination on behavior plans and workload is a weekly habit. High school teachers work inside a department, teach one subject to several sections of older students, and carry a heavy grading load, along with advising on course selection, college applications and career and technical pathways.

Planning and instruction

Most of the intellectual work happens before students arrive. A teacher maps a unit backward from the standards it must cover, decides what students need to know first, anticipates where they will get stuck, and builds the questions and tasks that reveal understanding. In the room, a lesson might move from a short direct explanation to guided practice, partner work and an exit ticket. Good teachers adjust on the fly when a question shows half the class missed a prerequisite.

Assessment and data

Teachers grade constantly: homework, quizzes, lab reports, essays and unit tests. They also give district benchmark assessments and prepare students for state tests. The useful part is what happens next, when a teacher or a team groups students by the skills they missed and reteaches. Grades and attendance go into a student information system such as PowerSchool or Infinite Campus, and assignments often live in a learning management system like Google Classroom, Canvas or Schoology.

Students who need something different

A general education classroom can include students with individualized education programs or Section 504 plans, English learners and students working well above grade level. The teacher implements accommodations written into those plans, attends IEP meetings, and co-plans with special education teachers or interventionists who may share the room.

Beyond the lesson

The work extends past the bell: calling families, writing progress reports, covering lunch or hallway supervision, sitting on school committees and sponsoring a club or coaching a team. Teachers in public schools also sit inside a chain of policy, from the state board and its standards to district curriculum choices and the building's schedule, and they translate all of it into the next day's plan.

Degree and preparation

The standard path is a bachelor's degree plus a state-approved teacher preparation program that ends in a semester or more of supervised student teaching. Future elementary teachers usually major in elementary education. Middle and high school candidates typically major in the subject they plan to teach, such as math, biology or English, and add education coursework, or complete a combined program that grants both.

A master's degree is not needed to start, but it can matter for pay: a district salary schedule sets steps for years of service and columns, or lanes, for graduate credits and degrees. Planning graduate coursework around those lanes is a practical career move.

State licensure

The Bureau of Labor Statistics notes that all states require teachers in public schools to be licensed or certified in the specific grade level they will teach. Licenses are issued by each state's education department or professional standards board, and they come with grade bands and subject endorsements. Adding an endorsement, for example in special education or English as a second language, widens the jobs you can take.

States set their own exam requirements. Some use the Praxis series from ETS, including the Praxis Core Academic Skills for Educators tests and the Praxis Subject Assessments, while others run their own content and pedagogy tests. Requirements also move: in December 2025 the New Jersey State Board of Education adopted amendments that eliminate both the basic skills test and the edTPA performance assessment for certification there. Check the current rules with the state you plan to teach in rather than relying on a classmate's experience from a few years ago.

Initial licenses usually convert to a professional license after a few years of successful teaching and a mentoring or induction program, and renewal requires ongoing professional development hours.

Advanced credentials

Experienced teachers can pursue National Board Certification from the National Board for Professional Teaching Standards, which is designed to recognize accomplished teachers. Ask your state and district whether they pay a stipend for it.

Skills that separate strong teachers

• Clear explanation, broken into steps that match the age group
• Classroom management built on consistent routines rather than constant correction
• Reading assessment results and turning them into regrouped, targeted reteaching
• Comfort with a learning management system, a gradebook and the district's family messaging tool
• Calm, specific communication with parents, including hard conversations
• Willingness to take coaching from a mentor, department chair or instructional coach

Flat headcounts, steady openings

The Bureau of Labor Statistics projects little or no change in employment for high school teachers from 2025 to 2035, a net change of -2,500 jobs. Even so, it expects about 63,500 openings for high school teachers each year on average over the decade, with most of those openings coming from the need to replace teachers who move to other occupations or leave the labor force. Middle school teachers show the same pattern: little or no change in employment, -2,600 jobs over the decade, and about 38,800 openings a year on average.

In plain terms, teaching is a replacement market: the openings come from teachers who leave, not from new positions.

Where the shortage really is

Openings and shortages are different measures. The Learning Policy Institute's State Teacher Shortages 2026 Update, published in July 2026, estimated 387,843 teachers in all 50 states plus the District of Columbia who were not fully certified for their assignments, and 37,569 unfilled teaching positions in the 29 states plus the District of Columbia that publish vacancy data. Together, that is a minimum of 425,412 positions either unfilled or staffed by teachers without full certification, about 1 in 8 teaching positions nationally, and roughly 13,860 more than in LPI's 2025 scan.

States most often report shortages in special education, science and math, so the subject you are licensed to teach matters. It also means the colleague in the next room may be teaching on a provisional credential while finishing coursework.

Pay

The National Education Association reports that the average public school teacher salary rose from $71,985 in 2023-24 to $74,495 in 2024-25, a nominal gain of 3.5%. NEA also reports that, adjusted for inflation, teachers earn about 5% less than they did 10 years ago. Pay is set district by district through salary schedules, so the same job pays differently a few miles apart.

AI arrives without a playbook

Formal school guidance on AI is still uncommon. In a Gallup survey of public K-12 teachers fielded in early 2026, just 18% reported receiving any formal guidance from school administrators on how AI tools should be used at work, and about one-third (34%) received no guidance at all across 10 common tasks. Until a district writes its rules, teachers are left to set their own classroom norms on AI use, disclosure and academic integrity.

Moving up without leaving education

Paths beyond the classroom include department chair, grade-level lead, mentor teacher, instructional coach, curriculum specialist and, with an administrative license, assistant principal. Some teachers move to district offices to run assessment, technology or special education programs, and others take their content expertise into curriculum publishing or teacher preparation.

Dear Hiring Committee,

I am applying for the seventh grade science teacher position at Ridgeview Middle School. I recently completed my student teaching in an eighth grade physical science classroom at a large public middle school, and I hold an initial license with a middle grades science endorsement.

My mentor teacher ran a lab-centered classroom, and she handed me full responsibility for a forces and motion unit in my second month. I rebuilt the unit around three short investigations, each ending with a claim, evidence and reasoning write-up. The first round of write-ups was rough, so I added a sentence frame, modeled a strong example under the document camera, and gave written feedback within two days. By the end of the unit, students were citing their own data without being prompted, and my mentor asked to keep the materials for next year.

I also co-taught a section that included several students with IEPs. Working with the special education teacher, I learned to plan with accommodations written in from the start instead of patched in afterward: chunked lab directions, a vocabulary bank, and a choice of how to show understanding. That planning habit made the lesson better for everyone in the room.

Outside class, I helped run the school's after-school robotics club and kept families informed through a short weekly newsletter on what students were building.

Ridgeview's team structure and its focus on hands-on science are what drew me to this posting. I would welcome the chance to talk about how I plan, how I use assessment to decide what to reteach, and how I would contribute to the seventh grade team.

Sincerely, Jordan Ellis