Most teachers that use Freckle do not have a class set of devices. Truthfully, all you need is a few iPads, Chromebooks, computers or any of our other supported devices. If you do not have a class set, you can set up a Freckle center, and then have the pupils rotate through it to complete their work.
Once your pupils have completed the diagnostic test, you can use the printables tab to get tailored printable practice for each pupil. As you continue to rotate your pupils through centers, you can always generate new printables that automatically adjust to the pupil's level.
Video tutorial: http://frontrowed.wistia.com/medias/o8rejdoaff