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Download full textJulie Sarama; Douglas H. Clements; Arthur J. Baroody; Traci S. Kutaka; Pavel Chernyavskiy; Jackie Shi; Menglong Cong – AERA Open, 2021
We tested a specific theoretical assumption of a learning trajectories (LTs) approach to curriculum and teaching in the domain of early length measurement. Participating kindergartners (n = 189) were assigned to one of three conditions: LT, reverse-order (REV), or business-as-usual (BAU). LT and REV students received one-on-one instruction using…
Descriptors: Kindergarten, Mathematics Instruction, Measurement, Teaching Methods
Direct linkCallejo, M. Luz; Pérez-Tyteca, Patricia; Moreno, Mar; Sánchez-Matamoros, Gloria – International Journal of Science and Mathematics Education, 2022
The objective of the study was to characterise how pre-service kindergarten teachers used a Hypothetical Learning Trajectory on length and its measurement to notice children's mathematical thinking. A total of 64 pre-service kindergarten teachers enrolled in an Early Years Education mathematics teaching course were asked to notice teaching…
Descriptors: Preservice Teachers, Preschool Teachers, Sequential Learning, Measurement
Douglas Clements; Julie Sarama; Traci Kutaka; Pavel Chernyavskiy; Arthur Baroody – Society for Research on Educational Effectiveness, 2021
Background: Learning trajectories (LTs) in early mathematics curriculum and teaching have received increasing attention (Baroody et al., 2019; Clements, 2007; Clements & Sarama, 2021; Maloney et al., 2014; Sarama & Clements, 2009). For example, LTs were a core construct in the National Research Council (2009) report on early mathematics…
Descriptors: Learning Trajectories, Measurement, Kindergarten, Young Children
