Students varied in the speed of their developmental progressions but all reached the highest phase¶

Claim · All claims
Evidence · 1 study · qualitative r2 · q2
Currency · newest study 2025 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? One student showed an immediate jump in developmental progression while the other two progressed more gradually, yet all reached phase 8. → Eunhye Flavin 2025

Evidence¶

Eunhye Flavin 2025¶

Eunhye Flavin, Moon Chung, Sunghwa Flavin, Matthew T. Flavin. (2025). Augmented reality for area measurement reasoning of elementary students. Education Tech Research Dev. https://doi.org/10.1007/s11423-025-10502-0

q2 · i? · qualitative · r2

Cross-case comparison of trajectory phases across the five tests in the multiple-case study; the authors anticipated initial reasoning skills and other mathematics knowledge might explain the differences, and argue all students can construct area measurement knowledge with a carefully designed intervention.

"Daisy showed an immediate jump in developmental progression, while the other two students showed relatively gradual progress."

Discussion¶

Learner Variables¶

• Age and Developmental Stage — outcome: instruction changes it
• Measurement — outcome: instruction changes it

Related Claims¶

• AR activities with an instructor facilitated elementary students' area measurement reasoning to the highest trajectory phase for both basic and composite shapes — related
• Students maintained phase-8 area measurement reasoning after AR activities and instructor support were withdrawn — related
• Teacher concern development is better characterized as progression and retreat than linear stage movement — related
• Children's tool use progresses from unspecific manual use to specific instrumental use governed by the tool's culturally established mode of acting — related
• Teachers' concerns follow a developmental trend from lower to higher stages during curriculum implementation — related