Power Presenter lets you display a presentation (Keynote and PowerPoint included) that’s been converted to a PDF file. There are two ways to open the PDF file on your iPad — you can upload it via the file sharing function in iTunes or you can upload it from an email by holding down the attachment icon. Once the file is uploaded, you can present it, mark on slides using the pen and erase markings, and email the marked-up slides to your audience. The app also has a whiteboard feature and provides access to the web with one tap. Having these functions in one application can be very useful when the spotlight’s on you.Cost: $1.99
Geocaching can be a fun way to get students outside for some hands-on geography lessons. To help you find geocaching challenges in your area, Geocaching.com recently updated their geocache map. You can now switch between map views (road, satellite, street maps, and cycle maps) and search for geocaches in your area.
This table provides a list of historical U.S. newspapers that are available online at no cost. Newspapers available for free through Google News Historical Archives and Newspaperarchives.com are listed individually as I identify them.