🧠 Depth, not speed
No timers, no leaderboards, no flashcard drills. Real problems, real conversations.
🌟 15 minutes a day
One short, structured session: warm-up · puzzle · hands-on · story · "explain your thinking."
🤝 Small by design
Capped at 50 families. Free. No ads, no third-party tracking. Run by a neighbor.
Here's why I built this. A Romanian high-school graduate at 18 has covered calculus with proofs, linear algebra, and combinatorics. A US student finishing AP Calculus BC has done single-variable calculus, no proofs. The gap doesn't open in 11th grade — it opens in kindergarten, when one tradition teaches structure and reasoning, and the other teaches arithmetic drill.
I have two K–1 kids who love math. I built this for them, drawing from the Soviet/Russian math-circle tradition (Zvonkin, Kordemsky), the modern research on mathematical mindsets (Boaler), and good American writing about how to teach math without crushing the joy out of it (Tracy Zager, James Tanton).
This isn't a startup. It's a tool I made for our family that I'm sharing with a small number of yours. If it helps your kid have a great math conversation tonight, that's the whole point.
A daily session looks like this
- ☀️ Warm-up — 3 quick mental-math puzzles to wake up the brain
- 🧩 Rich puzzle — one juicy problem worth talking through
- 🖐️ Visual / hands-on — ten-frames, blocks, paper folding
- 📖 Story problem — a small situation to model and solve
- 💬 "How do you know?" — the most important question in math
- 🏡 Kitchen-table follow-up — to play with toys, coins, or food later
See real samples for K, Grade 1, Grade 2 →
Frequently asked
How does the waitlist work?
Submit the form. I'll personally email you within a couple of days. If a slot is open, you'll get a sign-in link by email. If not, you go on the waitlist; when an active family becomes inactive, I offer the slot to the next person.
Does it cost anything?
No. I built this for my kids and I'm sharing it with a small number of yours. Nothing to pay, nothing to subscribe to.
Why the cap?
Two reasons. (1) I personally email every family who signs up — that scales to about 20 families, not 200. (2) Small communities are better than big ones. 50 families × 3 kids = 150 kids — plenty to make this real, small enough that I can answer your questions when you have them.
What about my kid's data?
Lives only on my AWS account in your family's row. Nightly encrypted backup. No third-party tracking. Anything I'd send to an AI service (the optional daily digest) anonymizes your child's name first. Full data export in JSON or CSV is one click on your dashboard.
Who are you?
I'm Chris Lindeman, a parent in Mt Lebanon. I'm not an EdTech company — I'm a neighbor who builds software for a living. A bit more about me →
Reachable any time at chris@base2ml.com.