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Sarama, Julie; Clements, Douglas H. – Journal of Cognitive Education and Psychology, 2021
Scaling up educational interventions in the STEM (Science, Technology, Engineering, and Mathematics) field is critical but under-researched. We review and draw implications from a series of studies investigating the long-range impact of an implementation of an early mathematics scale-up model based on learning trajectories. Lasting effectiveness…
Descriptors: Program Effectiveness, Intervention, Mathematics Education, Preschool Education
Kleiman, Glenn M. – Education Development Center, Inc., 2004
There is currently a great deal of controversy about a critical issue in educational research: What constitutes valid evidence for determining whether educational innovations are effective? One side of the controversy is reflected in the U.S. Department of Education's current policies and funding programs. This side emphasizes methodological…
Descriptors: Teaching Methods, Program Effectiveness, Research Methodology, Experimental Groups