1956年6月10—14日,由通州专署教育科主持,举行了一次较大的园地实习课的观摩教学。观摩实习课的内容是:“马铃薯培土”,“番茄整枝”,和“鸡的日粮定量配合原理和方法”。参加观摩者有通州专署所辖23所中学和师范学校46名生物教师。并聘请了北京师范大学生物系教学法组宏怀麟副教授和陈皓兮讲师 From June 10 to June 14, 1956, the Tongzhou Agency’s Education Section presided over and held a large field practice teaching observation. Observing the practical content of the lesson are: “potato soil”, “pruning of tomatoes”, and “rationing of chicken ration rationale and methods.” To participate in the observers Tongzhou agency under the jurisdiction of 23 secondary schools and 46 normal school teachers of biology. And hired Beijing Normal University Department of Biology Teaching Method Group Associate Professor Wang Huanlin and Chen Hao Xi Lecturer