“主体分层探索创新”教育教学实验是“山东省人文科研‘十五’规划重点项目”和“山东省教育科研‘十五’规划重点课题”,该实验的有关理论在本刊发表后,在国内引起广泛反响:中国教育学会的有关部门专门设立部室对其进行专项研究,济南大学、临沂师范学院等大专院校也为其设立了研究部门,全国上千所中小学对其进行设点实验。在实验过程中,许多一线老师纷纷来函来电对该实验及小学数学常规实验的有关问题进行咨询。为了和广大一线老师一起更好地规范小学数学教学实验,本刊特约省内外有关专家和有经验的一线老师对有关问题进行了解答。 “The main stratified exploration and innovation” education and teaching experiment is “Shandong Provincial Humanities Research” fifteen “key project” and “Shandong Province Education and Research” fifteen key planning topics ", the experimental theory published in this publication, In the country caused widespread repercussion: China Education Society set up special departments to carry out special research, Jinan University, Linyi Teachers College and other colleges and universities also set up its research department, the country’s thousands of primary and secondary schools set up their points experiment. In the course of the experiment, many front-line teachers have inquired about the related problems of the experiment and the routine experiment of primary school mathematics by telephone. In order to better standardize primary school mathematics teaching experiments with the majority of front-line teachers, relevant experts inside and outside the province as well as experienced front-line teachers gave answers to relevant questions.