You can import pages into a project to combine student work into one project.
Create a new project or open a project.
Click the File menu and choose Import Pages.

You will see the Import Pages dialog.

Click the Arrow next to My Projects.

Click My Classes.

Click a Class.
Click the name of a student.
Click a project.
Click the Select button.

You will see the pages in the project.
Click the page or pages you want to import.

Click the Import button.
The pages will be imported into your project.
Click the File menu and choose Import Pages.

You will see the Import Pages dialog.

Click the Arrow next to My Projects.

Click My Classes.

Click a Class.
Click the name of a student.
Click a project.
Click the Select button.

You will see the pages in the project.
Click the page or pages you want to import.

Click the Import button.
The pages will be imported into your project.
Note: If the pages you import was created in the mind mapping tool, the imported pages will show the entire mind map on the background layer.