一、说教材“最小公倍数”是九年义务教育人教版六年制小学数学第十册第二单元“约数和倍数”第五节第一课时的教学内容 ,包含课本第７１—７３页例１、例２及相关练习。该内容是在学生已经学习了“约数和倍数的意义” ,“质数和合数 ,分解质因数”“最大公约数”等的基础上进 First, the teaching material “the least common multiple” is nine years of compulsory education PEP six units of primary school mathematics tenth unit second unit “divisor and multiple” fifth day of the first class teaching content, including textbooks 71-73 Example 1, Example 2 and related exercises. The content is based on the fact that students have learned the meaning of “divisor and multiple”, “prime number and composite number, factor of dissociation factor”, “greatest common divisor”