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arXiv · 2603.23830

CodeExemplar: Example-Based Scaffolding for Introductory Programming in the GenAI Era

Boxuan Ma·Shinichi Konomi
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Abstract

Generative AI (GenAI) can generate working code with minimal effort, creating a tension in introductory programming: students need timely help, yet direct solutions invite copying and can short-circuit reasoning. To address this, we propose example-based scaffolding, where GenAI provides scaffold examples that match a target task's underlying reasoning pattern but differ in contexts to support analogical transfer while reducing copying. We contribute a two-dimensional taxonomy, design guidelines, and CodeExemplar, a prototype integrated with auto-graded tasks, with initial formative feedback from a classroom pilot and instructor interviews.

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Boxuan Ma, Shinichi Konomi. 2026-03-25. CodeExemplar: Example-Based Scaffolding for Introductory Programming in the GenAI Era. https://arxiv.org/abs/2603.23830

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