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教学内容和教材简析 本节教学内容为质数和合数(教材第58-59页例1、例2),第1课时,新授课。 质数和合数是在学生已掌握约数、倍数以及能被2、5、3整除的数的特征的基础上进行教学的。它是分解质因数、求最大公约数、求最小公倍数以及约分和通分的重要基础。通过本节课的教学,不仅要使学生准确地理解和掌握质数、合数的概念,而且能较快地判断一
Teaching content and textbook analysis This section teaching content for the prime number and a few (textbook 58-59 Example 1, Example 2), the first class, the new lectures. The prime number and the composite number are based on the characteristics that the student has mastered the divisor, multiple, and the number that divides by 2,5,3. It is an important basis for decomposing the prime factor, finding the greatest common divisor, finding the least common multiple, and about dividing and dividing points. Through this class of teaching, not only to enable students to accurately understand and grasp the concept of prime numbers, composite number, but also to quickly judge a