A few suggestions are to:Schedule your class(es) as much as possible
Prepare you class(es) for the lab visit just like you would prepare them for a field trip (that's what this lab visit is)
Use the lab time as a portion of a collaborative group project rather than as an individual typing assignment
Prepare rubrics, and prepare your class(es) before arriving at the lab
Provide all instructions about the assignment before arriving at the lab
Develop an online presence of your own, and allows students to access the project resources from home
Test the lab and work through the processes first, alone
Plan on reusing the same rules, rubrics, strategy, or project method for every lab visit for the year
Make the original assignment generic
Build the assignment or project in a modular fashion
Train students at every step of the project
Check each student to ensure that they know what to do before you arrive at the lab
Assign helpers, partners, buddies for each student. These are the first line helpers that students will turn to before seeking their teacher's help.Plan on a strategy where every student is doing something different while your class is using the lab.