Students are able to checkout books from the Student Page of your library.  

If using a barcode scanner:

Your students are able to use a barcode scanner to search the book they wish to checkout.  Click your cursor into the Search bar, and scan the barcode on the back of the book.  This should bring the student directly to the title where they can proceed with checkout. Other options include searching by title, author, or keyword.

In the below example,  the Teacher has required students to select the condition of the book upon checkout.  Teachers can opt to have students select Condition, Copy, or Rating upon checkout.