Sequenced AR tiling activities progressing from basic rectangles to composite shapes with increasing unit-size variety

Design · All designs
Evidence · 2 claims (2 for) · 1 study (1 qualitative), q2 · 0 of 1 report an effect size · 2 claims rest on one study

Description

The intervention used four weekly AR activities, each about 60 minutes, sequenced from measuring a rectangle with two unit sizes, to L-shapes with two and then three unit sizes, to a large rectangle with four unit sizes. The design rests on the premise that "Understanding the same area can be tiled with different shapes and measured using various unit squares is essential for developing area measurement competency", so the authors "intentionally instructed students to use different unit sizes when measuring the area of shapes". Later activities pushed students toward efficient strategies such as covering more area with fewer, larger units.

Design Implications

Context

Requirements

• an instructor present as a social scaffolder to explain each activity and guide reasoning

Constraints

• activities were implemented over four weekly sessions in a summer program setting

Target Learners

• elementary students with weak area measurement reasoning

Learning Goals

• decomposition and recomposition of composite shapes
• multiplicative reasoning with rows and columns

Claims

• Composite Shape Misconceptions Persist Mid Intervention [+M]
• Social Technological Scaffolding Synergy Area Reasoning [+M]

Related Designs

Examples

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Key Sources

• 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

Page metadata

Field	Value
type	design
id	sequenced-ar-tiling-activities-unit-size-variety
title	Sequenced AR tiling activities progressing from basic rectangles to composite shapes with increasing unit-size variety
description	The intervention used four weekly AR activities, each about 60 minutes, sequenced from measuring a rectangle with two unit sizes, to L-shapes with two and then three unit sizes, to a large rectangle with four unit sizes.
status	review
generated	by process:settle-candidates on 2026-10-29
trust	unverified — no one has confirmed this page's content
sources	1 — eunhye-flavin-2025

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