cluster 发表于 2025-3-28 14:50:57
Transforming Mathematics Education: The Role of Textbooks and Teacherse made for shaping textbooks in such a manner that they may better support this kind of transformation. At the same time it is pointed out that the latter requires a complementary effort in teacher professionalization and a well-considered alignment of both efforts.Gum-Disease 发表于 2025-3-28 21:22:51
A Comment on Remarks by Rubin and Hartigan,s a variable of interest and . = 0 for a unit if it is a nonrespondent and . = 1 otherwise. Dr. Rubin considers the problem of specifying the joint distribution of (.) and distinguishes two methods of doing this:前面 发表于 2025-3-29 00:51:18
http://reply.papertrans.cn/47/4665/466420/466420_43.pngDebility 发表于 2025-3-29 06:56:16
http://reply.papertrans.cn/47/4665/466420/466420_44.png