00986nam a2200217Ia 450000100070000000500170000700800410002402000050006504000100007008200070008024501420008724600580022924600500028724600430033726001000038030000250048061000620050565000680056765000590063571000740069425276620160527190258.0011013e        xxu    gr     000 0 eng d  c  aPUCPR0022100aModerator's guide to eighth-grade mathematics lessonsbUnited States, Japan, and Germany : TIMSS as a starting point to examine teaching.2 aModerator's guide to eighth grade mathematics lessons30aTIMSS as a starting point to examine teaching1 iAt head of titleaAttaining excellence  aWashington, DCbU.S. Dept. of Education, Office of Educational Research and Improvementc(1998)  a177 p.bill.c28 cm.20aThird International Mathematics and Science Study.2Local 0aMathematicsxStudy and teachingxCross-cultural studies.2Local 0aMiddle school teachingxCross-cultural studies.2Local1 aUnited StatesbOffice of Educational Research and Improvement.2Local