Here are some key features that you might consider when developing an online education platform using React:

Course listings - The platform should have a user-friendly interface for browsing and searching courses. Users should be able to filter courses by subject, level, price, and other parameters. The course listings may also include information like course descriptions, syllabi, and reviews.

Video lectures - The platform should support the uploading and streaming of video lectures. Users should be able to view the lectures on different devices and platforms, and the videos should be optimized for different connection speeds.

Quizzes and assignments - The platform should support the creation and submission of quizzes and assignments. Users should be able to take quizzes online and receive feedback on their performance. The platform should also support the creation and submission of written assignments and projects.

Progress tracking - The platform should track users' progress through courses and provide them with feedback and recommendations. Users should be able to view their progress reports and track their achievements.

Certifications - The platform should offer certification options for users who complete courses or programs. Users should be able to receive digital certificates that can be shared on their social media profiles and resumes.

User management - The platform should support user authentication and authorization. Users should be able to create accounts, log in, and manage their profiles. The platform should also support role-based access control, so that different users have different permissions based on their roles.

Payment integration - The platform may require integration with payment gateways to process payments for courses or programs. This may include support for different payment methods and currencies.