Is your district buying iPads?  Have your teachers been trained?  Often the answers are yes and then no.  Hopefully this is not your issue, teacher training in the use of any new technology is crucial to its effective use.  Here is a great blog from Free Technology for Teachers with resources to help guide your teachers and your district in the use of your iPads.  There is a link to an article detailing What the iPad is and what it isn't!  In addition there are a number of links to presentations helping teachers figure out what their best practices might be.
Now That Your Students Have iPads... Great Advice from Silvia Rosenthal Tolisano