Build a math practice generator for your kids

A parent used Claude Code to build a math problem generator powered by o3-mini for his kids and relatives. He supervised while the agent wrote the app, and he picked up some JavaScript by reading the frontend code it produced.

Tool: Claude Code + o3-mini
Source: @karatalaamalaka on X
Source date: Dec 28, 2025

Credit: this use case was shared by @karatalaamalaka on X. Summary written by Kitbox; see the original for full details.

Try it yourself

Our own starter prompt. Fill in the brackets, then paste it into Claude or your agent of choice.

Starter prompt

Build a simple web page that creates math practice sheets for a [AGE]-year-old. Let me choose the topic, difficulty and number of questions, show the answers on a separate printable page, and keep the problems varied so they don't repeat. Explain the code in comments so I can tweak it.