00366nam a22001337a 4500003000400000005001700004008004100021020001500062040001800077100002900095245007400124250001300198260002100211OSt20231024135213.0160301b        xxu||||| |||| 00| 0 eng d  a067521209x  cDLCaDLCdDLC  aPosamentier, Alfred .S.   aTeaching Secondary School Mathematics Techniques and Enrichment Units  a3rd Edn.  bMacmillan c1999