我是一个小学数学老师,有两个非常可爱的双胞胎孩子。他们快要上一年级了,最近对数学的计算比较感兴趣。12-3等于多少,一时难住了他们。直接教他们怎样算?不!我很快否定了这样的想法。怎么办?我们全家总动员,一家4人合作,自编自演了一场数学游戏。我先在两张纸上分别写上个位,十位,然后放在地上,一个孩子扮演个位2,一个扮演十位1,这个1因为在十位上,孩子也看明白了,他的真实身份是10。爸 I am a primary school math teacher with two very cute twin children. They are going to be in the first grade and are more interested in math calculations recently. 12-3 is equal to how many, temporary hard to live them. Directly teach them how to count? No! I quickly denied this idea. What to do? Our whole family mobilization, a four-man cooperation, self-directed a math game. I first wrote the first two places on paper, ten, and then on the ground, a child plays a par 2, a play ten 1, the 1 because the ten, the children also understand that his The real identity is 10. dad