App name: PW LITE. Price: free. Category: . Updated: Feb 20, 2012. Current Version: 1.0. Size: 0.50 MB. Language: . Seller: . Requirements: Compatible with iPhone, iPod touch, and iPad.Requires iOS 3.0 or later. Description: The purpose of the PowerWalks Lite application is to allow e ducators to collect classroom observation data and track ins tructional rigor and relevance .