To enjoy the richness of Cornerstones, you will need to have the following free software installed on your computer:

Adobe Reader: This will give you access to all the PDF files, including the Lesson Guides, Teaching Strategies, and the printable activities. If you don't already have it, you will need to download Adobe Reader.

QuickTime Player: This will allow you to view the downloadable video clips. If you don't already have it, you will need to download Apple's QuickTime Player.

Shockwave & Flash: These will allow you to play our interactive games, Flood! and Look Out Below! If you don't already have them, you will need to download Shockwave & Flash.