00346nam a2200121Ia 4500008004100000020001800041082001500059100002100074245007800095250000800173260003500181300000800216190710s9999    xx            000 0 und d  a1-4129-3731-0  a371.3028 S  aSkowron , Janice 0aPowerful lesson planning : every teacher's guide to effective instruction  a2nd  aCaliforniabCorwin Pressc2006  a153