RT Journal Article SR Electronic T1 Educational Experimentation in National Social Policy JF Harvard Educational Review JO herp FD Harvard Educational Press SP 547 OP 566 DO 10.17763/haer.40.4.688453780n2n7038 VO 40 IS 4 A1 Timpane, P. Michael YR 1970 UL http://harvardeducationalreview.org/content/40/4/547.abstract AB The need for experimentation is clear. But in reviewing the history of educational experimentation—from Progressivism through the "Grey Areas" projects of the 1950's and the War on Poverty—the author suggests that fruitful experimentation demands a difficult balance of "real world" involvement and political insulation. The history is particularly relevant to an understanding of the origin, evolution, and prospects of the recent "Experimental Schools" Proposal.