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一、第一册包括那些内容,编排上有何特点? 这一册包括:10以内数的认识和加减法,11—20各数的认识,20以内的进位加法和退位减法。在编排上主要有以下特点: 1.认数和计算适当结合。教材把20以内数的认识和加减法分为两段:10以内数的认
I. What's in the first volume including the content and the layout? This volume includes understanding and additions and subtractions within 10s, understanding of numbers 11-20, carry additions and abort subtracts up to 20s. In the layout of the following main features: 1. Recognition and calculation of the appropriate combination. Teaching materials to the number of less than 20 and the addition and subtraction of the law is divided into two sections: 10 within the number of recognition