The document summarizes a mobile learning project for mathematics education in South Africa and Finland. It describes how the project provides interactive math learning materials through mobile phones to support both formal and informal learning. Over time, the project expanded from a few schools to over 150 schools in South Africa and 4 schools in Finland. The project benefits learners by giving them 24/7 access to learning materials and feedback, and benefits teachers by providing additional exercises and a diagnostic tool. Evaluations found the project improved math results and was sustainable, affordable and scalable.