Penmentor

Independent developer Abdullah Al Hariri has shared an open source software project called Penmentor on GitHub. The software acts as an automated tutor for handwritten mathematics by connecting digital note-taking programs directly to artificial intelligence systems. When a user triggers the tool while working through problems on a graphics tablet, an underlying AI model analyzes the visual layout of the page.

Rather than simply printing final solutions or generating long text explanations, the project focuses on active learning. According to documentation published on GitHub, the tool circles calculation mistakes directly on the digital page, ticks correct work, and offers progressive clues to help students identify errors themselves. The system can also launch interactive mathematical animations to illustrate abstract concepts like calculus functions.

This approach highlights how visual AI can shift from writing homework for students to guiding them through difficult material like a human instructor. However, because the software currently requires command-line tools and specific desktop configurations on Linux systems, setup may prove difficult for average learners. It remains uncertain whether mainstream educational apps will integrate similar visual feedback tools for standard tablet platforms.