00478nam a2200157Ia 4500008004100000020001400041082001600055100003700071245007400108250000800182260003700190300002700227500001900254600002700273650002000300240925s9999    xx            000 0 und d  a138941483  a510.712 SOB  aSobel ,Max A.; Maletsky ,Evan M. 0aTeaching Mathematics: a source book of aids, activites, and stategies  a2nd  aBoston:bAllyn and Baconc,1991.  axv,531p.bNAfOriginal  aIncludes Index  aEngineering Technology  aNatural Science