The document describes Ruben Puentedura's SAMR model, which categorizes technology usage into four levels: Substitution, Augmentation, Modification, and Redefinition. Substitution involves using technology to replace existing tasks without functional change, while Augmentation includes some functional improvement. Modification allows for significant task redesign, and Redefinition creates new tasks not previously possible. An example is given of a writing teacher whose technology integration progresses from word processing to online collaboration and cross-curricular projects.