This document discusses using mobile devices like cell phones as learning tools in the classroom. It notes that 88% of US adults now own a cell phone, including high percentages of all age groups over 12 owning smartphones. The document then provides examples of apps like QR readers that teachers can use for activities like digital scavenger hunts or linking homework to websites. It also introduces polling and feedback tools that can be used on students' phones. It concludes by having teachers choose one tool to use and provide details on an assignment incorporating mobile learning.