Title: Ma fan de 3 sui, guan jian de 6 sui qian
Description: Ben shu sheng dong di miao hui le 0-6 sui er tong de ge zhong sheng li he xin li te zheng, Jie kai le er tong cheng zhang de ao mi, Zhan xian le er tong cheng zhang guo cheng zhong yi xie chuang zao xing de qi ji.
Subjects: Er tong jiao yu, Jia ting jiao yu ., Zao qi jiao yu, Jiao yu li lun .