How to Cover a Class You've Never Seen: A Substitute Teacher's Guide

Practical steps for running a class with no lesson plan or seating chart, from the first five minutes to the final handoff note.

Before you walk in

Most of the work that makes a substitute day go well happens before the bell. Arrive early enough to find the room, the staff room and the front office, and ask for anything the school has prepared for you. You are not expected to know the building, but you are expected to ask.

Try to collect these items before first period. If any are missing, note that in your log so the school can fix it next time.

Ask the front office for the class list, the bell schedule and the room number for each period.
Ask where the emergency procedures, lockdown instructions and first-aid kit are kept.
Find out who to contact for help during the day, such as a neighbouring teacher, a department head or a main office extension.
Ask whether any students have medical needs, learning support plans or behaviour agreements you need to know about.
Check the room for a teacher's desk, a computer, a printer and the location of spare paper and pens.

The first five minutes

Your first contact sets the tone. Stand at the door, greet students by name if you have it, and state one clear expectation, such as 'Sit down, get out a pen, and I'll explain the plan in two minutes.' Keep your voice calm and your instructions short.

Without a seating chart, build a temporary one. Ask students to sit anywhere for now, then walk the room with a blank sheet and write names in the order you see them. Index cards or folded paper name tents also help, because students can correct you quickly and you can learn names faster.

Greet students at the door and point them to their seats.
Take attendance by reading names aloud and asking students to correct pronunciation.
Draw a rough seating plan on a sheet of paper and note who sits where.
Ask students how they prefer to be addressed, and write it down next to their name.
Give a single first task, such as reading a short passage or answering a question on the board.

Finding a lesson when there isn't one

If no plan has been left, look in the places a teacher would normally keep one: the desk drawers, a folder on the computer, the shared drive, a tray labelled with the class name, or the board where earlier lessons may be written. Do not start a new topic before you know what the class has covered.

A useful fallback is a supervised task that matches the subject and does not need new teaching. For example, in a Year 8 history class with no plan, you might find that the class is on a unit about the industrial revolution. You could ask students to read the next section of their textbook, answer the questions at the end, and write three sentences about what they found most surprising. This keeps the room productive and gives the teacher something to follow up.

Check the desk, folders, shared drive and whiteboard for an existing plan.
If you find one, follow it exactly, even if you would have taught it differently.
If you find nothing, ask the class what they were working on last lesson.
Use a reading, worksheet or written reflection task that the students can finish alone.
Write down what you did and what the students completed.

Managing behaviour in a room you don't know

Students will test a new adult, which is normal. Your best tools are consistency and the classroom's existing routines. Use the same words the students hear from their teacher if you can find them, such as a signal for silence or a rule about phones. If you do not know the routine, set a simple one and repeat it calmly.

When a student says something like 'Our teacher lets us listen to music,' avoid making promises you cannot keep. A better response is 'I'm not sure about that, so we'll stick to the task and I'll note it for your teacher.' Then make a brief record. Honesty protects you and the class.

Give two or three clear expectations and state them once at the start.
Walk the room during independent work so students know you are paying attention.
Use the names you wrote on your seating plan, not just 'you' or 'hey.'
If there is a problem, deal with it privately where possible.
Record any incident with the time, student name, what happened and what you did.

Leaving a handoff note that helps

A good handoff note is the most useful thing a substitute can leave. It tells the teacher what happened, what was finished and what needs attention. Keep it short, factual and specific. Avoid judgements about individual students and stick to what you saw.

Here is a worked example. Suppose you covered a Year 10 maths class. Your note might say: 'Attendance taken, 27 of 29 present. Class started on the practice questions for Section 4.2. Questions 1 to 10 were completed by most students. Two students were slow to start; I checked their work at the end. Alicia and Tom both asked about homework due Friday. No behaviour issues to report.' The teacher can pick up from there without guessing.

Write the date, period, class and your name at the top.
Record attendance and any changes to the seating plan.
Describe what the class worked on and how far they got.
List any incidents, questions or requests from students, without naming students in negative terms.
Leave the note where the teacher will see it before their next lesson.

Common mistakes to avoid

Most substitute problems come from a small number of habits. The first is starting too much new material. Students who have not been taught a topic cannot learn it well from a short explanation, so keep the day to consolidation and review unless the plan says otherwise.

The second mistake is ignoring the room's own routines. If the class always submits work in a tray at the door, use the tray. The third is skipping the note, which leaves the teacher guessing. The fourth is making promises about rewards, free time or grades that you have no power to give.

Do not introduce new topics unless a plan tells you to.
Follow existing routines for work collection, toilet breaks and phones.
Never promise rewards, exemptions or grade changes.
Do not leave the room unsupervised, even for a short time.
Always leave a handoff note, even if the day went smoothly.

Written with AI assistance.