RT Journal Article SR Electronic T1 Mathematical Power to the People JF Harvard Educational Review JO herp FD Harvard Educational Press SP 357 OP 370 DO 10.17763/haer.60.3.743k5723w461v238 VO 60 IS 3 A1 Bishop, Alan YR 1990 UL http://harvardeducationalreview.org/content/60/3/357.abstract