Schedule each child for three time slots. (They could be longer than 15. minutes depending on the number of students.)
9:00
9:15
9:30
9:45
10:00
10:15
10:30
10:45
11:00
11:15
11:30
11:45
12:00
12:15
12:30
12:45
1:00
1:15
1:30
1:45
2:00
2:15
2:30
2:45
3:00
-Adapted from ideas in Creating a Technologyically Literate Classroom by Gary M. Garfield & Suzanne McDonough.