Emergency backup for substitute teachersIt’s 1:37 PM.They’ve finished everything.Dismissal is at 3:00.We can fix this.
When the lesson plan ends before the school day does.
SubSOS is practical emergency backup for U.S. elementary substitute teachers, grades K–5. Get one low-prep activity for the time, materials, subject, and classroom energy you have right now.
Built for a phone, ordinary classroom materials, and the moment you need an idea fast.
The 1:37 moment
A familiar kind of surprise
1:37PM
The bell
3:00
01 / Save My Class
One good activity. For this room, right now.
Get one ready-to-use idea instead of a menu to sort through. SubSOS keeps the choices focused on what a substitute can answer quickly, standing in the classroom.
No special supplies. No lesson-plan lecture. Just a clear next move for the class.
Matched to the moment
- Grade
- K–5
- Time
- 5, 10, 20, 30, 45, or 60 minutes
- Subject
- Anything, or a specific subject
- Materials
- What is already in the room
- Energy
- Calm, normal, restless, or absolute chaos
- Grouping
- Solo, pairs, groups, or whole class
One strong activity
Ready to lead, not just read.
- An activity name, goal, and exact words to get started
- Clear steps, materials, timing, and classroom-management advice
- An easier version, a harder version, and an “already finished” extension
02 / Build My Day
Protect the plans. Patch the gaps.
A substitute shouldn’t have to rebuild a teacher’s day from scratch. Build My Day organizes the schedule around the plans already provided and helps cover the uncertain stretches.
See the plans- 01
Bring the plans you have
Add the grade, school-day times, specials, lunch, recess, and the teacher’s notes.
- 02
Keep what the teacher planned
Existing plans stay in place. SubSOS only looks to supplement missing or weak spots.
- 03
See the day in order
Get a clear schedule with backup ideas ready for vulnerable transitions.
03 / Plan B
For the moments that didn’t make the plans.
A dead connection, a cancelled assembly, a class that needs a reset: Plan B offers quick, classroom-ready responses to the surprises that come with a school day.
- 01They’re finished already
- 02The Wi-Fi is dead
- 03I have 10 minutes
- 04I have 30 minutes
- 05The class is restless
- 06The planned activity isn’t working
- 07Assembly was cancelled
- 08Indoor recess
- 09I need a quiet activity
- 10I need them moving
Simple, self-serve plans
A few rescues to try. More room when you need it.
3
SOS rescues per month
Try a quick activity when a lesson ends early or the day takes an unexpected turn.
Explore Save My ClassEverything for the full school day
- Unlimited SOS rescues
- Build My Day
- All Plan B scenarios
- Printable activities
- Saved favorites
- Saved grade preferences
SubSOS has your back