00770nam a2200193Ia 450000100070000000500170000700800410002402000220006505000240008708200150011124501180012626000420024430000290028650400510031565000860036665000680045270000280052070000280054825192820160527190100.0                                          a0807741418c22.9500aQA276.18b.I58 2002002372.7 I 6200aInvestigating real data in the classroombexpanding children's understanding of math and sciencecRichard Lehrer.  aNew York, NYbTeachers Collegec2002.  aix, 126 p.bill.c28 cm.  aIncludes bibliographical references and index. 0aMathematical statisticsxGraphic methodsxStudy and teaching (Elementary).2Local 0aMathematical statisticsxStudy and teaching (Elementary)2Local10aSchauble, Leona.2Local10aLehrer, Richard.2Local