Isbn: 9787543699731 - 阶梯数学2~3岁阶第二阶全套2册逻辑思维训练书籍启蒙认知 益智游戏趣味数学 儿童学前书籍 (1 Ergebnisse)

paperback. Zustand: New. Paperback. Pub Date :2013-12-01 Pages: 46 Language: Chinese Publisher: Qingdao Publishing House ladder Math series of eight. suitable for 2-6 years old children. according to age group divided into four stages. Each age group is divided into upper and lower two. This series is based on mathematics teachers by experienced early childhood intellectual development characteristics of children in the preparation. which contains a number of geometric shapes. simple addition and subtraction operatio.…