This activity consists of 15 different problem cards. Students must be able to graph lines (some vertical, some horizontal, some diagonal and not given in slope-intercept form), and write equations of lines (given a slope and a point, given two points, parallel to given line, perpendicular to a given line). Students must also be able to identify pairs of lines that are parallel, perpendicular, or neither. The teacher posts the 15 problem cards around the classroom. Students begin their scavenger hunt at one card,and show their work and answer on the provided template. If they are successful, the answer to that problem card will lead them to another problem card. This is much more exciting than a traditional worksheet, because this activity gets kids out of their seats and provides built-in checks for understanding along the way.