To create sharing/view links for your specific classes, please follow these steps -
1. Click on Go To -> Sharing Options.
2. Ensure you have a "Student View Key" set up under the "View - Students" heading. This can be anything and is only needed to create the links.
3. Ensure all classes are selected under the "View Classes" field.
4. Click the "Download Links" button in the upper-right corner of the "View-Students" box.
5. Open the document and copy the links to your specific classes.