"All 3 volumes. It turns out that mathematics can be learned in this way. Liu Xunyu's three mathematics books for children. Mr. Ma talks about mathematics and fun mathematics."

This set of three mathematics books for children is divided into 3 volumes, with a total of 55 articles. They are popular mathematics articles written by mathematics master Liu Xunyu for primary and secondary school students, advocating learning mathematics in life and mastering knowledge in fun.

Liu Xunyu's mathematical ideas have influenced generations of mathematicians such as Yang Zhenning and Gu Chaohao, and still shine with rationality and wisdom.

Mr. Ma Talks about Mathematics uses the tone of "Mr. Ma" to teach mathematics to children in a flexible and interesting way, just like a humorous and funny teacher. It not only allows children to master the basic principles of mathematical algorithms, but also gives them ideas for solving real-life problems. It uses graphic methods to solve more than 100 common question types, so that children can learn a whole category by learning one. It turns out that the four arithmetic operations can be learned this way!

"Mathematics Fun" is a math book that makes children become friends with math. It finds fresh topics from life, makes the rules, formulas, and theorems in the textbook come alive, and stimulates children's interest in learning. Learning math from masters, it turns out that math is not scary, math can be not boring, and every child can fall in love with math.

"The Garden of Mathematics" provides an interesting review and explanation of mathematical concepts and principles. It is an introductory manual for advanced mathematics that even junior high school students can understand. This book systematically introduces concepts such as functions, continuity, induced functions, differentials, integrals, and totals, as well as their basic principles and algorithms. Junior high school students can use this book to preview advanced mathematics in advance, master it one step earlier than others, and stand on a higher level than others!

Liu Xunyu (1896-1967)

A modern Chinese mathematics educator, mathematician and publisher.

In 1928, he went to study in France and studied mathematics at the University of Paris.

After returning to China in 1930, he taught at Jinan University, Daxia University, Tongji University and Southwest Associated University.

After 1949, he served as the principal of Guiyang Middle School.

In 1950, he was transferred to the People's Education Press as deputy editor-in-chief. He reviewed all mathematics textbooks for primary and secondary schools and personally participated in their compilation.

Liu Xunyu, together with Xia Yizun, Ye Shengtao, Feng Zikai and others, founded youth magazines such as "Middle School Student" and "New Youth", and published many interesting popular science articles on mathematics. His works include "Mr. Ma Talks about Mathematics", "Mathematical Fun", "Factors of Mathematics", etc., which have always been excellent tutoring books for primary and secondary school students to learn mathematics and have become recognized classics by generations. The words are varied and the images are strong and powerful. When talking about modern Russian poets, Pasternak once said: "She is the best among us."