SimpleK12 has great resources and this link provides access to 10 of the most popular iPad resources for educators. You will find 50+ Quick Tips and Resources, 20 Free iPad Apps Educators Can't Live Without, Essential iPad Websites and App Guide, Apps for Students with Special Needs, and much more.
SimpleK12 also provides live webinars for free so you may want to sign up to receive notification of when they take place. You may choose to join SimpleKi12's Teacher Learning Community (there is a cost) but these specific resources are available at no cost.