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Direct linkNomi, Takako; Allensworth, Elaine – Journal of Research on Educational Effectiveness, 2009
Expanded instructional time has become increasingly popular as a strategy to improve the academic outcomes of low-skilled students, particularly in the 9th grade. We evaluate the efficacy of a double-period algebra policy initiated in the Chicago Public Schools in 2003. This policy required all students with 8th-grade test scores below the…
Descriptors: Grade 9, Algebra, Curriculum Development, Mathematics Achievement
