Next year's classes, balanced
before lunch.
Class Mixer takes your new intake and the pupils already on roll, balances them into classes under the rules you set, and writes the result straight onto student records.
Class lists are still made on the classroom floor.
- Today · 01
A fortnight of sticky notes
Every June a deputy head spreads names across a table, moves them around for days, then re-types the result into a spreadsheet.
- Today · 02
The rules live in people's heads
Which twins stay apart, which friends need a buffer, who needs a teaching assistant — it's remembered, not recorded, and it walks out the door with staff.
- Today · 03
Nobody can see if it's fair
One class ends up with most of the SEN support or all the summer birthdays, and you only find out in September.
Fair classes you can defend to any parent.
A first draft in minutes
Pick the year group, set the number of classes, press generate. You start from a balanced draft, not a blank page.
Rules written down once
Keep pupils together or apart, lock a child into a class, and carry those rules into next year's project.
Balance you can see
Meters for class size, gender, SEN, EAL and ability bands update on every move, so an uneven class is obvious before it's final.
From intake to class lists in four steps.
- 01
Start a project for a year group
New joiners from admissions and pupils already on roll are pulled in together. Class sizes come from your year-group targets.
- 02
Add what staff know
Record friendships, pairs to keep apart and pupils to lock in place. Family links are suggested for you, and you choose which to keep.
- 03
Generate, then refine in the grid
Every run is saved as a version. Drag pupils between classes, compare versions side by side, and let the grid warn you before a move breaks a rule.
Warnings appear the moment a hand edit breaks a rule. - 04
Accept onto student records
One click writes each pupil's new class onto their record and your class lists. The decision is logged, with who accepted it and when.
Who uses Class Mixer
Deputy Head / Head of Year
A balanced draft to start from and a report that explains every placement.
Class teachers
A place to record friendships and pairs to keep apart before the lists are made.
Admissions
New joiners flow into next year's classes without a second spreadsheet.
Everything in Class Mixer
- Mixes new intake and pupils on roll in one cohort
- Keep-together, keep-apart, group and lock rules
- Family links suggested automatically, dismissible per project
- Friendship survey captured per pupil
- Balance on class size, gender, SEN, EAL and ability bands
- Every generation saved as a version; compare any two
- Guarded drag-and-drop with suggested fixes
- Placement report and CSV export
- Audited accept onto student records and class lists
1 200 zł (€300) per school per year, whatever your headcount.
Added to any FirstDay plan and billed alongside it. Switch it off at any time from Settings → Modules.
Get startedQuestions about
Class Mixer.
Why is Class Mixer priced per year?
Because that's how schools use it: intensively once a year, when next year's classes are planned. One yearly price covers every year group and every project.
Do we need the rest of FirstDay to use it?
No. Class Mixer works on its own: import your pupils, make your lists, export or accept them. If you also run admissions in FirstDay, new joiners appear automatically.
Does the software decide for us?
No. It produces a balanced draft and explains why each pupil is where they are. Staff move anyone, lock anyone, and nothing reaches student records until someone accepts it.
Who can see SEN and friendship information?
Only staff whose role grants Class Mixer access. Sensitive fields follow the same role-based permissions as the rest of FirstDay, and every accepted change is written to the audit log.
Can we re-run it mid-year for a new class?
Yes. Start a new project for the year group at any time — the rules you recorded carry forward.
Next year's classes, balanced before lunch.
Start with FirstDay, switch on Class Mixer, and have it running this week.