To design a GUI for educational software, consider the following steps:

1. Define the learning objectives and target audience.

2. Conduct user research to understand students' needs and behaviors.

3. Develop a clear information architecture and navigation.

4. Create an intuitive and consistent visual design.

5. Use interactive elements and multimedia to enhance engagement.

6. Incorporate feedback mechanisms and assessment tools.

7. Ensure accessibility and usability for diverse learners.

8. Design for flexibility and adaptability to different learning paths.

9. Test and iterate with real users to refine the design.

10. Align the GUI with educational standards and pedagogical principles.

Additionally, consider the following best practices:

- Use clear and simple language
- Minimize cognitive load
- Provide scaffolding and support
- Encourage exploration and discovery
- Use visualizations and graphics to illustrate complex concepts
- Make it fun and engaging!

By following these steps and best practices, you can create an effective and engaging GUI for educational software that supports learning and student success.