MatheVital is a modular collection of interactive materials for math education available freely online. The materials are designed to provide a precise and visual experience to learners through simulation environments. The goals for the materials are to offer high interactivity, be comprehensive and encourage further research, work across different platforms, and be easy for lecturers to generate and integrate into their workflows. Both learners and lecturers can access the materials to support independent study and provide demonstration materials for classroom use.