1.2 HCF and LCM最大公因数和最小公倍数 • Unit1:lesson2 • HCFandLCM TeachingGoal学习目标 •1.StudentslearnthedefinitionofHCFandLCM,•2.FindoutHCFandLCMofseveralwholenumbers.KeypointsandDifficultpoints重难点 Keypoint:UnderstandthedefinitionofHCFandLCM;Difficultpoints:ApplyHCFandLCMtoreallife R...