Table Top Twitter! This writing activity can be used as a quick formative assessment tool to see what students are comprehending and also able to see what connections they can make to the text. Each student can be given a different color of marker to respond in so that teacher is able to see individual student understanding.
Also on these boards
Reading Response Activities -- some good post-reading activities that are differentiated for different learning intelligences (per Gardner's theory) and different levels of Bloom's Taxonomy [The link is broken, but you can read the ideas by enlarging the image.]
Read & Respond- A Guided Reading Brittany's response: I would like to be able to place this in each child's individual reading/ writing folder, so they could use it as an independent learning tool to help aid in sight word recognition.
Tabletop Twitter - Take a short passage from a and glue to a large piece of bulletin board paper. Set a timer and there is no talking: only moving around to read what each other writes and responding back to each other. The teacher gets to jump in too! Students respond to the passage and each other.