追念前辈以励后人（中）──写于华印椿老先生百岁延辰之前姜士贤二、结合实际勇于创新华印椿老先生于１９１２年（当时１７岁）担任无锡西漳天上市第一国民小学算术珠算教师。当时珠算教学都以熟读上法、退法为启蒙方法，学生在不尽理解口诀的朦胧状态下死记硬背，教学效... Remembrance of the predecessors to encourage future generations (center) ─ ─ written in India before the centenary of Yanchun Chun Chen Shine Yin II, combined with the actual courage to innovate Huajin Chun Lao in 1912 (then 17 years old) as West Wuxi Zhangtian First national primary school arithmetic abacus teacher. At that time, abacus teaching was familiar with the law, retreat for the enlightenment method, students in the hazy state of understanding not understand rote memorization, teaching effectiveness ...