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Direct linkSarama, Julie; Clements, Douglas H.; Barrett, Jeffrey E.; Cullen, Craig J.; Hudyma, Aaron; Vanegas, Yuly – Mathematical Thinking and Learning: An International Journal, 2022
Measurement is a critical component of mathematics education, but research on the learning and teaching of measurement is limited. We previously introduced, refined, and validated a developmental progression -- the cognitive core of a learning trajectory -- for length measurement in the early years. A complete learning trajectory includes…
Descriptors: Mathematics Instruction, Teaching Methods, Learning Trajectories, Measurement
Pavel Chernyavskiy; Traci S. Kutaka; Carson Keeter; Julie Sarama; Douglas Clements – Grantee Submission, 2025
When researchers code behavior that is undetectable or falls outside of the validated ordinal scale, the resultant outcomes often suffer from informative missingness. Incorrect analysis of such data can lead to biased arguments around efficacy and effectiveness in the context of experimental and intervention research. Here, we detail a new…
Descriptors: Bayesian Statistics, Mathematics Instruction, Learning Trajectories, Item Response Theory
