"Research Findings:" Pattern creation (PC) is creating a pattern unit based on children's own understanding of the concept of pattern, without being provided with a pattern unit as a reference, and the repetition of this pattern unit to create a complete structure. This study explored the performance and predictors of pattern creation…

Although hypothetical learning trajectories (HLTs) are often viewed as a valuable instructional tool, little research has directly evaluated their value. A basic assumption of HLTs is that ordering instructional activities by developmental difficulty enhances learning. A randomized control trial (RCT) served to evaluate this assumption with a…