Graphic organizers are visual representations that help facilitate learning and promote comprehension. They can be used before, during, and after instruction to aid student understanding. The document discusses how graphic organizers were used in a reading of the book "Walk Two Moons" at different stages - a KWL chart before reading, concept maps during reading to compare stories, and a timeline after reading. Common Core standards for 5th grade literacy involving determining themes, comparing characters and events, and analyzing point of view are also listed.