Teaching third grade comes with a variety of computer-based learning. I became overwhelmed in making sure my students got plenty of time on all these websites. I extended my computer time beyond math and reading centers and incorporated a "morning work" schedule. Students are assigned a day and morning time to get on a website I assign.
With these schedule cards, you print them out on card stock and write your students' names in the schedule area. I then laminate them and leave the time open. When I assign kids, I write the time in with dry erase board marker.
The students get this sign on their desks first thing in the morning and know to get on the computers. Enjoy!