The "الرياضيات السادس ابتدائي" app by SaBE is an excellent tool for sixth-grade students to learn and understand math lessons easily. The app contains summaries for all lessons, local exams with solutions, and an index of all topics. The app is designed to work offline, which means you can review the lessons anywhere without the need for papers or notebooks.

The app provides a comprehensive summary of all lessons in the sixth-grade math curriculum, including the first and second cycles. The app also provides local exams for each cycle with solutions, which helps students assess their understanding of the lessons. Additionally, the app includes a section called "The Math Helper" by Mohammed Saadan, which provides additional explanations for some of the more challenging concepts.

Overall, the "الرياضيات السادس ابتدائي" app is a great resource for students looking to review or learn math concepts in an accessible and convenient way.