Fairy tale "Mr. Tree Teaching"

forty-three

Mr. Tree asked the birds to take out two grains of rice and two toothpicks and asked, "How many of them are they now?" Or is it just as much? ”

The birds all said, "It's all four, that's just as much." ”

Mr. Tree added, "If you look with your eyes, you will know that there are as many of them?" ”

A bird said, "Yes, with your eyes you know it's four grains of rice and four toothpicks." ”

Mr. Tree said, "Can we also distinguish them by using a one-to-one correspondence?" ”

"What does one-to-one correspondence mean?" The birds began to question again.

"One-to-one correspondence is to compare this grain of rice with this toothpick one by one, one grain of rice to one toothpick, and another grain of rice to another toothpick, and this is how it is compared." This is called one-to-one correspondence. ”

"Oh, got it, got it." The birds understood another question.

Mr. Tree went on to say, "Compare these two things one by one, and if the comparison is just right, that is, there is no remaining part, then they are equally numerous, right?" ”

"Hmm! Is as much as it is. ”

"Now the children please pull out another toothpick." Do you see which grain of rice this toothpick can correspond to? ”

"Oh no, no grains of rice to compare with it." The birds were holding this toothpick and paddling it.

A bird took a toothpick and said to Mr. Tree, "Mr. Tree's grain of rice is four grains, and the toothpick is five, is it one more than the grain of rice?" ”