Lathoa is a math learning app that helps children develop critical thinking skills by having them find intentional errors made by AI, encouraging them to think for themselves and verify facts.
Imagine this: Your child is doing homework and asks an artificial intelligence (AI) to solve a math problem. The AI confidently gives an answer. But what if that answer is wrong? Until now, we have believed that “if information comes from AI, it must be the correct answer.” However, it is now time to completely change that belief.
Recently, a very special math app for children aged 9 to 15 created quite a buzz in the developer community. It’s called ‘Lathoa’. The core strategy of this app is both absurd and clever: it features an AI that deliberately solves math problems incorrectly.
Why Is Critical Thinking Important?
| We live in a flood of information. Especially with AI-generated content filling the internet, the ability to distinguish whether content is factual or not (critical thinking) has become more important than ever. The developers of Lathoa emphasize that the most important skill for children over the next decade will be “noticing when the AI is wrong.” [About Us | Lathoa](https://lathoa.ai/en/about) |
| In fact, AI chatbots that children use daily for homework, such as ChatGPT, Gemini, and Copilot, tend to provide incorrect information about 1 in 3 times when asked about real-world topics. [Lathoa - Outsmart the AI | 1 in 3](https://www.instagram.com/p/DcTnCOXDUuJ/) The habit of blindly accepting AI answers without thought can be toxic to children’s learning processes. |
Put Simply, This Is How It Works
Think of ‘Errol’, the AI robot in Lathoa, as a new friend. Errol may look like a highly intelligent machine, but in reality, he is an ‘intentional error expert’ deployed to foster children’s critical thinking. Learn - Lathoa
Metaphorically, it is like a chef teaching a child to cook by intentionally swapping sugar and salt, allowing the child to taste the result and discover the mistake themselves. Lathoa - Outsmart the AI (@lathoa.ai)
For example, in a problem calculating the sale price of a $120 jacket at a 30% discount, Errol intentionally substitutes an incorrect value in the calculation process, suggesting a price that is actually higher than the original. The child must calculate for themselves why Errol’s answer is wrong, and by correcting the process, they simultaneously improve their mathematical concepts and logical reasoning. Lathoa (@lathoa_ai) / Posts / X
Current Status
| Lathoa was introduced on September 30, 2026, on ‘Hacker News,’ where developers from around the world gather, and received enthusiastic attention. Best Show HN Projects Today — September 30, 2026 [HN.watch | Hacker News with explainer videos](https://hn.watch/) Currently, the app is quickly establishing itself as a service that combines math learning and critical thinking training for children and adolescents aged 9 to 15. [About Us | Lathoa](https://lathoa.ai/en/about) |
What Will Happen Next?
Artificial intelligence technology will continue to advance, but a perfect AI can never exist. Therefore, an era is coming where ‘verifying for yourself why an answer is not correct’ will be more important than ‘getting the right answer quickly.’ Services like Lathoa are gifting children with an ‘essential survival skill for the AI era’—not blindly trusting AI and proactively verifying knowledge. Is AI homework help hurting learning? What we actually know
When parents help their children use AI, instead of just asking for the right answer, why not ask, “Shall we check if this answer is truly correct, just like Errol would?” This simple question could become a powerful force that changes a child’s world.
MindTickleBytes AI Reporter Opinion: The era of wanting AI to provide the correct answer for everything is over. Instead, the habit of recognizing the ‘possibility of AI error’ and retracing the process will become the core of intellectual growth. Lathoa is a very wise example of turning machine errors into educational opportunities.
References
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[Lathoa Critical thinking for kids 10–14 in the age of AI](https://lathoa.ai/) - Learn - Lathoa
- Best Show HN Projects Today — September 30, 2026
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[About Us Lathoa](https://lathoa.ai/en/about) - How to spot AI math errors: a step-by-step guide for parents …
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[HN.watch Hacker News with explainer videos](https://hn.watch/) - Is AI homework help hurting learning? What we actually know …
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[Lathoa - Outsmart the AI 1 in 3. That’s how often the AI …](https://www.instagram.com/p/DcTnCOXDUuJ/) - Lathoa - Outsmart the AI (@lathoa.ai) • Instagram photos and …
- Lathoa (@lathoa_ai) / Posts / X
- Learning perfect answers from AI
- Cultivating children's critical thinking skills
- Increasing the speed of solving math problems
- Errol
- Gemini
- Nano
- 1 in 10 times
- 1 in 3 times
- 1 in 2 times