This Texas History activity can be presented either as a gallery walk or as a powerpoint presentation. It has three components: (1) explorer placards, (2) student graphic organizer and (3) a scoring rubric. I print out the placards and post them around my room. Students are then paired and each given the graphic organizer. Before they begin, I have the students review the rubric to determine what grade they want to achieve and then set them loose around the room searching for information on various explorers of Texas.