在数学课堂渗透珠心算教学上 ,我们获得了一些体会。现以部编数学课本第一册 (以下简称“教材”)为例进行说明。一、同步教材用绝大部分时间来教学“1 0以内的加减法和2 0以内的进位加法和退位减法”。这部分内容是小学数学中最基础的内容 ,是学生学习认数和计算的开始 ,同时也 In mathematics classroom infiltrating abacus teaching, we get some experience. Now to the Department of mathematics textbook first book (hereinafter referred to as “textbook”) as an example to illustrate. First, the synchronization of teaching materials spent most of the time to teach “addition and subtraction within 10 and less than 20 addition and subtraction addition carry.” This part of the content is the most basic elementary school mathematics content, is the beginning of student learning recognition and calculation, but also