00467 a2200169 4500 9780821366882 371.1 EFF 25183 41529 Efficient learning for the poor insights from the frontier of cognitive neuroscience Washington The world bank 2006 2006 xiv, 286p. 23cm. School Education Learning School activities Teaching L 52177 52177 0 0 0 0 LEN MAIN MAIN LEN 2009-11-06 0 371.1EFF 28210 2017-09-19 00:00:00 0.00 2016-10-31 L