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CBSE Senior Secondary — Classes XI & XII

Three streams, eight sections, five shared practical labs.

Classes
8
Teachers
20
Subjects
20
Rooms & labs
15
Quality score
100/ 100

352 periods placed

What made this hard, and how it was solved

Every school has one constraint that decides the whole week. Here is this school's.

The hard part

Physics, Chemistry, Biology, Informatics and Geography practicals all need their own room, and both grades want them — four Science sections between Classes XI and XII competing for the same three science labs. A practical is also useless as two periods either side of lunch: it has to be one uninterrupted double.

How it was solved

Every practical books its own laboratory, so a Class XII Physics practical and a Class XI Chemistry practical run at the same hour without ever meeting. Each stream is modelled as its own class, which is what lets three different subjects legitimately occupy the same period across the school — that is what an elective band is. And every practical is placed as a true double: two consecutive periods inside the same run, never split by the break or by lunch.

The actual timetable

Not a screenshot — the real grid, with the same four views the planner gives you. Pick a view, then a class, day, teacher or room.

One class, the whole week — the sheet that goes on the classroom wall.

CBSE Senior Secondary — Classes XI & XII

Class 11-Science A · every period, Monday to Sat

Theory & languagesLab & practicalGames, arts & library
Day
Period 1
08:00–08:45
Period 2
08:45–09:30
Short break
Period 3
09:45–10:30
Period 4
10:30–11:15
Lunch
Period 5
11:45–12:30
Period 6
12:30–13:15
Period 7
13:15–14:00
Period 8
14:00–14:45
Mon
Tue
Wed
Thu
Fri
Sat

Scroll the grid sideways to see the rest of the day.

The other two schools

Different boards, different problems — same product.

CBSE44 periods / week

CBSE School — Classes 1 to 10

Two sections a grade, half-day Saturday, one shared science lab.

A week of Class 1-A — theory, practicals and games, every period placed.

Classes
20
Teachers
47
Rooms
29
Open this sampleNo signup
STATE34 periods / week

State-Board School — Two Shifts

Junior wing in the morning, senior wing in the afternoon, five rooms for ten classes.

A week of Class 1 (Morning) — theory, practicals and games, every period placed.

Classes
10
Teachers
19
Rooms
10
Open this sampleNo signup

Set up your school — free to start

Your school's classes, your staff, your rooms — in about twenty minutes.