双数又称偶数,是指能被2整除的数,如2、4、6、8、10……单数又称奇数,是指不能被2整除的数,如1、3、5、7、9……教孩子认识单、双数,能培养孩子的观察力和思维能力,帮助孩子加深对数与数之间关系的理解。教孩子认识单、双数可用下列方法: 一、借助实物帮孩子理解单、双数的含义家长用扣子排成10行(如图1),叫孩子数一数每行扣子的数量,并在每行的下边摆上相应的数卡:叫孩子将每行的扣子两个一对两个一对地摆在一起 The double number is also called even number, is divisible by 2 numbers, such as 2,4,6,8,10 ... odd number, also known as odd numbers, is not divisible by 2, such as 1,3,5,7, 9 ... teach children to recognize single, double, can develop children’s observation and thinking skills, to help children deepen the understanding of the relationship between the number and the number. To teach children to recognize single and double numbers can be used the following methods: First, with the help of children to understand the meaning of single and double numbers Parents with buttons arranged in 10 rows (Figure 1), called the number of children each number of buttons per line, and The bottom of each row put the appropriate number of cards: call the children will each line of buttons two pairs of two put together