Does AI stop children from learning?
- Surging AI adoption in education:
- Broad international adoption has occurred among students, with over 80%–94% of university and school students reporting AI tool usage across various countries.
- A major study tracked 26,811 secondary school students (aged 12–18) in China between January 2023 and June 2025 to evaluate the impact of LLMs (such as Doubao and DeepSeek) on academic performance.
- The "AI learning penalty" and performance divergence:
- Homework improvements: AI users saw average homework scores rise by 18%, while completion time fell from 64 minutes down to 45 minutes.
- Exam declines: When tested independently in exams without AI assistance, these same students scored 20% lower than peers who did not use AI.
- Decoupling of metrics: High homework grades historically predicted exam success; with AI, top homework scores now correlate with worse exam performance.
- Study behavior and usage methods dictate outcomes:
- The exam penalty was heavily concentrated among students who used AI to rush assignments and copy-paste answers.
- Students who spent equivalent study time while utilizing AI—using models as personal tutors for conceptual explanations rather than answer shortcuts—retained solid exam results.
- A complementary Middlebury College study on undergraduates found that when used actively to learn unfamiliar material, AI tools improved both immediate and long-term test performance.
Hacker News Discussion
- Crowding out effort vs. force amplification:
- Commenters discussed whether AI amplifies capabilities or simply reduces the cognitive struggle essential for learning.
- Citations from the paper highlighted that over time, students learn how to take shortcuts, which eventually eliminates high-effort study sessions (spending over 65 minutes on homework vanished after months of adoption).
- Demographics, agency, and meta-learning:
- Users debated if AI benefits advanced, self-driven learners (e.g., graduate students) while harming middle/high schoolers who lack academic agency and study primarily out of obligation.
- Some countered that the study showed high-achieving students also suffered substantial negative learning effects when turning to AI shortcuts.
- Critiques of traditional academic assessments:
- Commentators argued that standard exams often measure compliance, test preparation time, or rote memorization rather than deep comprehension or aptitude.
- Educators noted that AI exposes structural weaknesses in university and secondary assessment methods, which have failed to evolve pedagogical standards alongside technology.