This document discusses using literacy centers for content areas like mathematics, social studies, and science. It introduces centers as an instructional tool and examines various content-focused center ideas. It also discusses assessment strategies for centers. Some center examples provided include vocabulary activities like concept sorts, concept maps, and word detectives. Sample reading strategies presented are KWL, DRTA, sketch-through-text, stop-and-write, and inquiry charts. Visual aids like graphic organizers are also mentioned as supports for comprehension.