【教学目标】1.探索并掌握“0和任何数相乘都等于0”这个规律。2.结合具体情境,能应用所学知识解决学习中的简单问题,逐步培养应用意识。3.经历与他人交流各自算法的过程,体验算法多样化。【教学重、难点】教学重点:探索并掌握“0与任何数相乘都等于0”这个规律。教学难点:能应用所学知识解决学习中的简单问题。【教学过程】(预备铃后2分钟的口算练习:包括20×3=0+5=60÷ 【Teaching Objectives】 1. To explore and grasp the “0 and any number of multiples are equal to 0 ” this rule. 2. Combination of specific situations, can apply the knowledge to solve simple problems in learning, and gradually develop the sense of application. 3. Experiencing the process of exchanging their own algorithms with others to experience the diversity of algorithms. Teaching heavy, difficult teaching focus: to explore and master “0 multiplied by any number equal to 0 ” this rule. Difficulties in teaching: Can apply the knowledge to solve simple problems in learning. Teaching process (2 minutes after the preparation of bell mouth exercises: including 20 × 3 = 0 +5 = 60 ÷