Hello everybody,
 
I am experiencing a minor(?) problem.  I teach HS physics to freshmen.  We are currently working on a case that should include a couple of laboratories for concept understanding.  They seem to be resisting performing the labs, even with strong suggestions from me.  Class time is not a problem; we meet 3 times a week with two 90 minute classes each week.  Short of giving them  specific laboratory directions, how can I impress upon them that they need the lab work?  
Carl E. Martikean
PMSA Science