# Nuvodux > Nuvodux (aiopsfoundry.com) is a free AI voice tutor for Canadian students in Grades 6 to 12. Its tutor, Nuvo, teaches from open OpenStax textbooks out loud, page by page, in clear English, and explains again as many times as the student needs. ## What Nuvodux does - Voice lessons for textbook chapters, Grades 6 to 12, following the book chapter by chapter. - Students can interrupt any time to ask why, and hear it explained a new way. - A live whiteboard for Math and Science, and the textbook page on screen. - Answers stay grounded in the textbook; questions unrelated to the subject are politely declined. - Notes and flashcards from every lesson, and a short knowledge check whenever the student asks. - Students can set how fast Nuvo speaks, from slower (0.75×) to faster (1.5×). ## Who it is for - Students in Grades 6 to 12. Students in Grades 11 and 12 can open both Grade 11 and Grade 12 courses. - Schools and teachers looking for free homework, question and review support. ## How to start - Open https://aiopsfoundry.com and sign in with Google. New students get free lesson time. - Choose a grade, open a course, pick a chapter or topic, and start talking to Nuvo. ## Common questions - Is it free? Yes. Nuvodux is a free, non-commercial educational service, with fair-use limits on lesson time. - Which textbooks does it use? Open textbooks from OpenStax, used under their Creative Commons licences with attribution. - Does Nuvo replace teachers? No. It helps with homework, questions and review outside class; teaching stays with the teacher. - Is it safe for children? Nuvo keeps to the textbook, there are no ads or feeds, and the microphone is used only during a lesson. ## Contact - Website: https://aiopsfoundry.com - Email: support@aiopsfoundry.com