TA39 is an AI-powered teacher's assistant that drafts assignment feedback from a teacher's own rubric and criteria, which the teacher then reviews and releases. Unlike student-facing apps, it keeps the teacher in control of all communication while tracking how students respond to feedback across multiple drafts. The platform integrates with Google Classroom and Google Docs, and is certified by 1EdTech for data privacy standards.
Funding
Funding not disclosed
Founders
Product
Problem
Teachers spend significant time drafting written feedback on student work, yet most existing tools provide generic, AI-generated comments that do not align with the teacher's specific rubric or voice. Even when feedback is generated, there is rarely a way to track whether students actually read and act on it across multiple revisions, leaving teachers uncertain about the impact of their most time-consuming work.
Solution
TA39 is an AI-powered teacher's assistant that drafts feedback directly from the teacher's own rubric and assignment criteria, producing comments that land on the specific sentences that earned them. The teacher reviews, edits, and releases each comment manually—nothing reaches a student without explicit approval, ensuring the teacher remains the decision-maker. TA39 also tracks student revision across drafts, showing teachers whether a student addressed the feedback, what changed between versions, and where gaps remain. The platform supports multi-draft "Revision Rounds" that keep every draft, rubric result, and feedback comment connected, making the revision process visible and measurable for both teacher and student.
Target Audience
Primary users are middle and high school teachers who grade written assignments and want to provide personalized, rubric-aligned feedback while maintaining full control over what reaches students. The platform also serves school administrators seeking a data-secure, standards-compliant feedback tool for their teaching staff.
Features
- AI feedback drafting aligned to teacher-created rubrics, with comments placed on the specific sentences that earned them
- Revision Rounds that track student progress across multiple drafts, showing what changed and what remains unaddressed
- Teacher-controlled release workflow where no comment reaches a student until the teacher explicitly approves it
- Rubric Converter Utility that formats existing rubrics for use in TA39, with AI-powered optimization and exemplar generation
- Google Classroom and Google Docs integration for direct submission and syncing, including a streamlined turn-in workflow
- Feedback templates that shape how AI-generated comments sound, are structured, and provide guidance to students
- 1EdTech TrustEd Apps certification ensuring standards-based integrations and rigorous data privacy protection