This document discusses the use of QR codes in education. It begins with background on QR codes, noting they can store more information than traditional barcodes and can be scanned by smartphones. The document then provides examples of how QR codes have been used in classrooms, such as linking to book trailers or supplementing lessons. Both benefits and criticisms of using QR codes in education are explored, with supporters arguing they can enhance experiential learning while critics note reliance on student access to smartphones. The document concludes QR codes are an engaging tool but not a primary resource due to device access issues.