LumiToan

Vietnamese students spend most of their study time finding the right practice material rather than working on it. Math resources online are scattered across three regional textbook tracks, a changing curriculum, and outdated free banks. General AI models trained on Western data get Vietnamese methods and problem framing wrong. LumiToan is a free Vietnamese K-12 math library and Socratic tutor. The library has around 8,000 documents that can be filtered by grade, province, exam type, and curriculum version. The tutor is Lumi, a native model trained on Vietnamese math.

/snap - Send a photo of a math problem. The bot extracts the topic and finds 3 to 5 relevant practice documents from the library. /recommend - Get a small, ordered set of practice materials matched to your grade and study period. /material search - Search the library by name or description. Diacritic-insensitive, so VNI or Telex input works. /material filter - Browse the library by grade, province, exam type, curriculum, or year. Results link back to lumitoan.vn, where Lumi sits beside the PDF. Lumi asks questions grounded in Vietnamese pedagogy and gives the answer only after you explain your reasoning.

The library covers all K-12 grades across the GDPT 2006 and 2018 curricula, five exam types, and all 63 provinces.