Bilingual Homework Hotline: AI-Powered Tutoring Support
In 2020, as schools shifted online and families navigated unprecedented uncertainty, a group from the University of North Texas, Texas Woman's University, and Denton ISD began meeting weekly to ask a simple but urgent question: How can we help bilingual families and students succeed?
From those conversations, the Bilingual Homework Hotline was born. Each week, pre-service teachers from both universities provide one-on-one and small-group tutoring for K-12 emergent bilingual students via Zoom, applying bilingual and ESL instructional strategies in a real-world setting.
Now in its fourth year, the program serves over a hundred students each semester while preparing the next generation of bilingual and ESL educators.
Impact Numbers
My Role: Designed and built the project website, the AI Homework Helper chatbot (RAG-powered, bilingual), and the Onboarding Assistant. I also maintained the centralized resource hub and integrated AI tools into the tutoring workflow.
What I Built
Two AI chatbots serving different needs within the same program
HH Homework Helper (Text Chatbot)
RAG-powered chatbot that helps tutors scaffold explanations instead of giving direct answers. Uses bilingual education best practices, cognate awareness, and culturally responsive strategies. Supports image generation for visual learners.
Onboarding Assistant
Conversational AI agent that answers new tutor questions about the program, teaching strategies, Zoom tips, and expectations. Supports bilingual interaction in English and Spanish, with program knowledge built directly into the system prompt.
3-Layer Content Safety
Regex pattern filtering, OpenAI Moderation API, and system-prompt guardrails ensure safe, on-topic interactions. Designed for a K-12 educational environment where content safety is non-negotiable.
Static Site + API Architecture
Migrated from WordPress to a lightweight static HTML site with Node.js/Express API backend. Custom domain, SSL, and nginx reverse proxy with redirect mapping for all legacy WordPress URLs.
The Story
From pandemic response to a lasting ecosystem of learning and mentorship
While serving as a Visiting Assistant Professor of Bilingual Education and ESL instruction at Texas Woman's University, I was invited by my colleague Dr. Jorge Figueroa to collaborate and integrate my students into the Bilingual Homework Hotline initiative. A clear pattern quickly emerged: tutors found it challenging to respond to specific questions, particularly in math and science, that required both accurate content knowledge and the ability to explain it at different language proficiency levels.
To bridge this gap, I built a centralized website that served as both a communication hub for tutors and a growing repository of instructional materials. When the first large language models emerged in late 2022, I saw enormous potential in integrating them into this educational context.
I began working on two connected ideas: a broader intelligent tutoring framework I would later name Veronica, and a practical application through the Homework Helper chatbot. The Homework Helper became the first working prototype of Veronica's vision, designed to guide tutors through reasoning steps, offer scaffolded explanations in English and Spanish, and suggest strategies aligned with bilingual and ESL pedagogy.
What began as a simple text-based chatbot has evolved into a multimodal learning companion capable of generating images and diagrams to support comprehension. With every new generation of large language models, the system grows more sophisticated, offering richer ways for tutors and students to communicate, visualize, and make sense of ideas together.
Try the Homework Helper
This is the live chatbot tutors use during sessions. It scaffolds explanations instead of giving direct answers, suggests culturally responsive strategies, and supports bilingual interaction. Try it:
Key Design Decisions
Never Give Direct Answers
The chatbot helps the tutor teach, not the student cheat. Every response scaffolds understanding through guiding questions and step-by-step strategies.
RAG-Powered Accuracy
The Homework Helper uses Retrieval-Augmented Generation with a curated knowledge base of bilingual and ESL best practices, ensuring responses are grounded in proven pedagogical strategies.
Bilingualism as Strength
The system treats bilingualism as an asset, not a deficit. It suggests cognates, culturally relevant examples, and validates home languages throughout every interaction.
Education First, Technology Second
AI enhances human teaching, it does not replace it. The technology handles routine tasks so tutors can focus on listening, motivating, and building relationships.
¡Solo es posible juntos!
It is only possible together. The Bilingual Homework Hotline continues to grow through the collective effort of administrators, teachers, university faculty, and students.