The decimal counting method is an important counting method in social development.On the basis of a profound understanding of the connotation of the decimal value system,teachers grasp the structural hierarchy and development stages of the positional value system.The ability of students to compare numerical values is related to their level of understanding of corresponding values;The performance of students'computational ability is closely related to their understanding of positional knowledge,and understanding the decimal value system can help im-prove students'computational ability.Teachers should clarify the importance of teaching tasks based on the value system,diagnose students'understanding of value system knowledge,and promote students to learn how to intuitive-ly understand the principles of operations based on the value system.
关键词
计数系统/十进位值制/数概念/运算能力
Key words
counting system/decimal value system/computational ability
维普
万方数据