Tools that work instantly with zero prior knowledge of the class -- seating, fair selection, backup activities, and pacing.
Walking Into a Room You've Never Seen
A substitute's job comes with a specific kind of pressure: run a class you've never met, off a lesson plan someone else wrote, with none of the seating knowledge, routines, or student relationships a regular teacher builds over months. Even a well-written sub plan can't cover everything. This is a quick reference for the moments it doesn't: no seating chart, no names to call on, a lesson plan that runs out early, and no feel for how fast this particular room normally moves.
Check What Was Actually Left Behind First
Before generating anything, look for what the teacher already left: a seating chart, a roster, specific instructions for early finishers. Use what exists. Everything below is for when it's missing, outdated, or doesn't cover the situation you're actually in.
If There's No Seating Chart
A left-behind chart is genuinely helpful, but it isn't always there, and it isn't always current. When you have to seat a class cold, a Seating Chart Generator builds a fast, random starting arrangement — a better opening move than letting students choose their own seats, which tends to make an already-unfamiliar room harder to manage once social groups settle in on their own terms.
If the plan includes a class list as a spreadsheet or text file rather than a printed page, the generator reads .txt, .csv, .xlsx, and .xls files directly — the file stays in your browser and is never uploaded anywhere, so there's no extra step and nothing to retype by hand. And when the plan does flag something specific about the room — two students who shouldn't sit next to each other, or someone who needs a seat near the front — the generator has an advanced-rules option for exactly that: pick the names involved before building the chart, and it works around them automatically instead of you rearranging seats once the period has already started.
If You Can't Call On Anyone by Name
Guessing who to call on visually risks looking like favoritism toward whoever is raising a hand or sitting somewhere obvious. A Wheel of Names — built from the class roster if the school has one saved — lets you select a student visibly at random without knowing a single name going in. Once someone has answered, removing their name before the next spin keeps the rest of the period fair, so the same student isn't picked twice while others are still waiting for a first turn.
If the Lesson Plan Runs Out Early
Plans occasionally run shorter than expected: an activity finishes in fifteen minutes instead of thirty, and you're left with real class time and no instructions for it. A Dice roll works for more than a single quick answer — set it to two or more dice and it totals the roll automatically and keeps a running count of every value rolled, which turns a filler five minutes into an actual short game rather than one dramatic throw. For something that needs the whole class moving, a Random Group Generator can load the same saved roster and split it into however many groups a short discussion or activity needs — no manual headcount, and the resulting groups can be printed or put on the screen in fullscreen so everyone can see their assignment at once. Either one turns unplanned time into something structured, which is usually when classroom management gets hardest for someone unfamiliar with the room.
If You Have No Sense of the Room's Pacing
A regular teacher paces a class by feel, built up over months. A substitute doesn't have that, so a Classroom Timer does the job instead. It has quick presets from one minute up to a full hour, so there's no need to calculate a countdown mid-period, and a full-screen mode with an audible alarm at zero means you don't have to keep glancing at a phone while you're actually running the task — the room hears it end on its own.
The One Real Filter for a Substitute's Toolkit
None of the above is worth using if it takes more than a minute to figure out mid-period. That's the actual filter for what belongs in a substitute's toolkit — not the most feature-rich option, but the one that works with nothing memorized and no account or login needed to get through a single class.
Before You Hand the Room Back
Leaving the room in a state the regular teacher can pick up from is as much a part of the job as getting through the period itself. If a seating chart got built from scratch, its print view formats a clean page to leave on the desk — one sheet instead of a hand-drawn diagram that has to be redone or explained. A short note about which review game actually worked, or exactly where the lesson stopped, tends to help the next day more than anything a tool here can generate.
What This Toolkit Doesn't Cover
None of this replaces the school's actual procedures for a medical situation, a behavioral incident serious enough to need escalation, or an emergency drill. Those go through the front office and whatever protocol the building already has in place — not a generated seating chart or a countdown timer. This toolkit is built for the ordinary logistics gap almost every substitute hits in an average period, not for the exceptions that need a specific adult with authority over the building.
What This Actually Looks Like Mid-Period
Filling fifteen unplanned minutes: two dice, rolled and totaled automatically, decide which of ten numbered review questions taped around the room a student answers next — the running tally the tool keeps doubles as a simple record of which numbers have already come up, so the game doesn't quietly repeat the same three questions all period.
Calling on someone with zero names memorized: the class roster goes into the wheel once at the start of the period, and every "who wants to try this one" moment after that is one click — whoever the wheel lands on, called by name, without the substitute ever having to guess or gesture vaguely toward a raised hand.
Privacy and Safe Use
Only use names already provided by the school for this purpose — a roster or sign-in sheet, not something students are asked to volunteer to a tool themselves. Any seating chart or generated material should stay inside the classroom, not get shared or posted anywhere outside it.
Frequently Asked Questions
Should I build a new seating chart if one was already left behind?
Generally no — use the one that's there if it's current. Build a new one only when nothing was provided or the existing chart is clearly out of date.
Do any of these tools need an account or login?
No — they're built to work immediately, without setup, which matters specifically when there's no time to configure anything before a period starts.
Can I upload a class list instead of typing every name in by hand?
For the Seating Chart Generator and the Random Group Generator, yes — both accept a .txt, .csv, .xlsx, or .xls file, and the names are read directly in your browser rather than uploaded anywhere.
What if the sub plan says two students can't sit near each other?
The Seating Chart Generator has an advanced setting for exactly that — select the students involved before generating the chart, and it will avoid seating them side by side.
What's the single most useful tool if I have zero information about the class?
A fair-selection tool tends to matter most day to day, since calling on students with no names memorized comes up every single period, not just occasionally.