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Clements, Douglas H.; Sarama, Julie; Baroody, Arthur J.; Joswick, Candace; Wolfe, Christopher B. – American Educational Research Journal, 2019
Although basing instruction on learning trajectories (LTs) is often recommended, there is little direct evidence regarding the premise of a LT approach--that instruction should be presented (only) one LT level beyond a child's present level. We evaluated this hypothesis in the domain of early shape composition. One group of preschoolers, who were…
Descriptors: Instructional Effectiveness, Mathematics Achievement, Mathematics Instruction, Geometric Concepts
Clements, Douglas H.; Sarama, Julie; Baroody, Arthur J.; Joswick, Candace; Wolfe, Christopher B. – Grantee Submission, 2019
Although basing instruction on learning trajectories (LTs) is often recommended, there is little direct evidence regarding the premise of an LT approach--that instruction should be presented (only) one LT level beyond a child's present level. We evaluated this hypothesis in the domain of early shape composition. One group of preschoolers, who were…
Descriptors: Instructional Effectiveness, Mathematics Achievement, Mathematics Instruction, Geometric Concepts
McClure, Elisabeth R.; Guernsey, Lisa; Clements, Douglas H.; Bales, Susan Nall; Nichols, Jennifer; Kendall-Taylor, Nat; Levine, Michael H. – Joan Ganz Cooney Center at Sesame Workshop, 2017
Tomorrow's inventors and scientists are today's curious young children--as long as those children are given ample chances to explore and are guided by adults equipped to support them. "STEM Starts Early" is the culmination of a deep inquiry by the Joan Ganz Cooney Center at Sesame Workshop and New America embarked on an exploratory…
Descriptors: STEM Education, Early Childhood Education, Interviews, Teacher Educators
McClure, Elisabeth R.; Guernsey, Lisa; Clements, Douglas H.; Bales, Susan Nall; Nichols, Jennifer; Kendall-Taylor, Nat; Levine, Michael H. – Joan Ganz Cooney Center at Sesame Workshop, 2017
Tomorrow's inventors and scientists are today's curious young children--as long as those children are given ample chances to explore and are guided by adults equipped to support them. "STEM Starts Early" is the culmination of a deep inquiry by the Joan Ganz Cooney Center at Sesame Workshop and New America embarked on an exploratory…
Descriptors: STEM Education, Early Childhood Education, Interviews, Teacher Educators
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Schenke, Katerina; Nguyen, Tutrang; Watts, Tyler W.; Sarama, Julie; Clements, Douglas H. – Journal of Educational Psychology, 2017
We examined whether African American students differentially responded to dimensions of the observed classroom-learning environment compared with non-African American students. Further, we examined whether these dimensions of the classroom mediated treatment effects of a preschool mathematics intervention targeted at students from low-income…
Descriptors: Mathematics Achievement, Racial Differences, African American Students, Classroom Environment