"Factors and Factorizations" is a popular science classic by the famous mathematics educator Liu Xunyu. This book can enhance the interest in mathematics for children who are not very good at it. And for those who already love mathematics, it can help them continue to delve deeper and become proficient in mathematics.In this book, Mr. Liu Xunyu combines the "numbers" of primary school and the "expressions" of middle school, allowing for analogous learning. Students who love mathematics, students with extra capacity, and students in the sixth grade preparing for the transition to junior high school can carefully read and reflect on it. Smart readers will discover the close connection between the two.Some of the terms in the book sound more vivid today: for example, what we now call "prime factorization" is referred to as "factor analysis" in the book, and "factorization" is called "factor analysis" in the book. Regarding the part about "expressions, " Mr. Liu Xunyu provides a detailed explanation in the book, which is greatly helpful for consolidating, expanding, and enhancing the understanding of "numbers" and "expressions" in junior high school mathematics.
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