《同文算指》 / Tongwen Suanzhi
《同文算指》 appears in EP259 与苗师傅漫谈徐光启：四百年前如何让人变聪明？ as an elementary arithmetic text that [[MiaoWeiSanlian|苗伟]] compares to a primary-school math textbook. The episode uses it to imagine a missed educational possibility: if positional notation, written calculation, and math study had entered institutions earlier, learning efficiency might have changed.
The source places the work beside [[EuclidsElementsChinese|《几何原本》]]. Where Euclid anchors [[EuclideanProofTraining|proof-based reasoning]], Tongwen Suanzhi anchors the everyday calculation and school-curriculum side of [[LateMingWesternLearning|晚明西学东渐]].
The page therefore belongs to the wiki’s [[LearningHowToLearn|learning-how-to-learn]] branch. Better mathematical tools matter when they reduce unnecessary language friction and let students practice reasoning rather than only decode difficult packaging.
Connections
- [[LiZhizao|李之藻]] - late-Ming literatus connected to the arithmetic branch in the source.
- [[EuclidsElementsChinese|《几何原本》]] - higher-proof counterpart.
- Learning How To Learn, Euclidean Proof Training / 欧几里得式证明训练, and Anti-Authoritarian Education - education and reasoning concepts.
- Late-Ming Western Learning / 晚明西学东渐 and Intellectual Life As Practice / 智识生活作为实践 - broader source frames.