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Young Children’s Understandings of Length Measurement: Evaluating a Learning Trajectory

Janka Szilágyi, Douglas H. Clements, and Julie Sarama 

May 2013, Volume 44, Issue 3, Page 581

This study investigated the development of length measurement ideas in students from prekindergarten through 2nd grade. The main purpose was to evaluate and elaborate the developmental progression, or levels of thinking, of a hypothesized learning trajectory for length measurement to ensure that the sequence of levels of thinking is consistent with observed behaviors of most young children.

Item Response Theory
Clinical Interviews
Conceptual Development