First log in to LiveSchool on your phone or tablet.
Then log in to LiveSchool on the computer you use to project to the class (or your smartboard, smart TV, or anything with an internet browser.)
Click sync to connect your devices. When devices are synced, everything you do in LiveSchool on one device will be “mirrored” on the other devices.
You can now use LiveSchool on your phone as you normally do, and it will update LiveSchool on the projector!