2004年2月20日,来自6个省的20余名科学教师约好,下午2点在e21科学探究网举办一次科学教育网上研讨会。这是e21科学探究网网友约定的第一次在线交流活动,《科学课》的执行主编姜允珍老师也来参加(顺便告诉您,姜老师的笔名是“大河”,在网上她用这个笔名;姚忆江,网友们早就知道是“忆江南”了),而网络管理员杨兰就是啊咿咿。 On February 20, 2004, more than 20 science teachers from six provinces made an appointment and a science education online seminar was held at e21 Science Discovery Network at 2 pm. This is the first time that e21 Science Discovery User has agreed to go online. Jiang Yunzhen, the editor-in-chief of Science Class, also came to attend (by the way, you can tell her that her pen name is “River” and she uses the pen name online; , Netizens have long known as “Yi Jiangnan”), and network administrator Yang Lan is ah 咿 咿.