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KidsDoMath for Teachers

By KidsDoMath Team · Published May 30, 2026

KidsDoMath is a free web app for K–3 math fact practice. No sign-up, no ads, no data collection — just a clean, visual practice loop that runs in any browser, online or offline. This page is a five-minute guide to using it in your classroom.

Why teachers use it

  • Free, forever. No premium tier and no upsells to manage.
  • No accounts to provision. Progress lives in the browser, so there is no roster to upload or password to reset.
  • COPPA-friendly. No data leaves the device unless a parent opts in to anonymous analytics.
  • Visual + spaced. Every new fact starts with an object array; review is scheduled by a 5-box Leitner system so students see what they actually need.
  • Works offline. Once loaded, the app keeps running through Wi-Fi outages.
  • Multiple operations. Addition, subtraction, multiplication, division, and order of operations with parentheses.

A 10-minute classroom routine

  1. Open kidsdomath.com on each student device.
  2. Have each student pick a character (one-time, takes ~10 seconds).
  3. Pick the operation you want to drill — addition for early-year, multiplication for Grade 2–3.
  4. Set a 10-minute timer. Most students complete 2–3 short sessions in that window.
  5. Use the Parent Dashboard (also visible to teachers) to spot which facts a student is struggling with.

Sharing with students

The simplest way to share is to write kidsdomath.com on the board. For Chromebook classrooms you can paste it directly into a Google Classroom assignment. There is no class code, no invite flow, and nothing to install.

Methodology

KidsDoMath uses the Leitner spaced-repetition system with five mastery boxes. New facts are introduced with a visual array, then practiced through guided and independent phases before being promoted up the boxes. Mastered facts re-appear at increasing intervals to keep recall fresh without wasting student time on facts they already know. Read more on how spaced repetition works.

Frequently asked questions

Is KidsDoMath free for classroom use?

Yes. KidsDoMath is 100% free for any classroom or homeschool setting. There are no premium tiers, ads, or paid features. The code is open source.

Do students need to create accounts?

No. KidsDoMath stores all progress locally in the browser — no sign-up, no email, no data sent off-device. This keeps the tool COPPA-friendly and avoids classroom account management overhead.

What grade levels does KidsDoMath fit?

KidsDoMath targets ages 5–8 (Kindergarten through Grade 3). It covers addition, subtraction, multiplication, division, and order of operations with parentheses.

Can multiple students share one device?

Yes. Each browser profile supports multiple named players, so a single shared tablet or Chromebook can rotate through a small group while keeping per-student progress.

Does it work offline?

Yes. KidsDoMath is a Progressive Web App — after the first load it works fully offline, so flaky classroom Wi-Fi is not a blocker.

How do I share KidsDoMath with my class?

Send the URL kidsdomath.com. No invite links, no class codes. Students can open it on any device with a modern browser.