STEM
TeeterTots
A see-saw tips down on the heavier side — tap the block that makes it level. TeeterTots says everything out loud (no reading needed), the blocks are big to tap and easy to count, and there is no way to lose — a wrong tap just says "try another." Balancing the see-saw is the first taste of what equals means (the seed of algebra). On-device, no account. Ages 3–5.
▶ Play it nowBuilt for sittings of about 10 minutes on the screen. That is our design budget, not a measurement.
Meet your mentor
Every Spark & Anvil app has a friendly mentor character that demonstrates, asks, and patiently scaffolds learning.
Mentored by Balley
#e08a2e Characters who teach
Meet the cast
TeeterTots' see-saw friends each embody one move of BALANCE — the crew IS the idea: Teeter feels which side is heavier, Evenly makes both sides the same, Wobble reminds you it is okay to try another block (you cannot lose). Mentor Balley keeps the balance idea: when both sides match, it is level — the very first feel of what equals means.
Teeter
Feels which side is heavier and tips the see-saw down — more on one side makes that side go low
Evenly
Makes it level — the same amount on both sides means the see-saw balances (equal)
Wobble
It is okay to try another block — a wrong tap is never a loss, just try again
Balley
when both sides match, it is level; that is the very first feel of what equals means.
What's inside
Learning goal
A see-saw tips down on the heavier side — tap the block that makes it level. TeeterTots says everything out loud (no reading needed), the blocks are big to tap and easy to count, and there is no way to lose — a wrong tap just says "try another." Balancing the see-saw is the first taste of what equals means (the seed of algebra). On-device, no account. Ages 3–5.
Mentored by Balley — no data leaves the device.
How TeeterTots handles your kid's data
- ✅ All progress, settings, and AI-generated content stays on the device
- ✅ No analytics, no tracking, no third-party SDKs
- ✅ Free — no ads, no in-app purchases
- ✅ No personal information collected from children — in line with COPPA (updated by the 2026 FTC amendments)
- ✅ No chat with strangers — play-together rooms use a short code and preset emotes, never typed messages