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Direct linkClements, Douglas H.; Sarama, Julie; Layzer, Carolyn; Unlu, Fatih – Journal for Research in Mathematics Education, 2023
A follow-up of a cluster-randomized trial evaluated the long-term impacts of a scale-up model composed of 10 research-based guidelines grounded in learning trajectories. Two treatment groups received the intervention during the prekindergarten year, and one of these groups received follow-through support in kindergarten and first grade.…
Descriptors: Models, Early Intervention, Mathematics Achievement, Age Differences
Download full textClements, Douglas H.; Agodini, Roberto; Harris, Barbara – National Center for Education Evaluation and Regional Assistance, 2013
In this Appendix, we provide details about the data used for the current study, the curricula used in the classrooms from which data were collected, and the current study's methodological approach. (Contains 14 tables and 5 footnotes.)[For full report, see ED544189.]
Descriptors: Mathematics Curriculum, Teaching Methods, Mathematics Achievement, Institutional Characteristics
