Teacher-created and free, MathFactLab’s multiple-model approach helps students build number sense as they develop math fact fluency in the four operations of addition, subtraction, multiplication and division. While our competitors rely on an ineffective method - rote memorization through drill - MathFactLab students engage with multiple models - such as number lines, area models, bar diagrams and ten frames - in order to see the patterns and relationships within the basic math facts. Developing fact fluency, therefore, becomes easier. Student understanding and engagement in mathematics becomes richer. Our advanced fact program provides a challenge to students (or teachers) who are already fluent in the basics.