Lathoa has introduced a new math application designed to foster critical thinking and AI literacy in children. Instead of providing correct answers, the app features an AI companion named Errol who intentionally makes mistakes during step-by-step problem-solving.
Lathoa launches math app designed to teach children AI literacy through intentional errors
The core mechanic requires children to watch Errol's reasoning, identify the incorrect step, and explain in their own words why the logic failed. This process is designed to teach children how to spot plausible but incorrect answers, a skill Lathoa describes as essential in a world increasingly filled with AI-generated content.
The application uses a ranking system—moving from Rookie to Sherlock—to reward accuracy in error detection rather than speed. Challenges are categorized into three difficulty tiers (Obvious, Sneaky, and Expert) to match different skill levels. To encourage real understanding, children must type a short explanation for each mistake they catch, which then triggers a reaction from the AI character.
Lathoa emphasizes a privacy-focused approach, stating that the service does not profile users and is designed to be COPPA-compliant. The app offers three free cases per day, with a subscription model available for full access.
Sources
- Show HN: Lathoa, a math app for kids where the AI is wrong on purpose （Hacker News Frontpage, 2026-09-30）