I Have...Who Has is a slope looping activity that reviews the concepts of slope, y-intercept and slope-intercept form in a fun and meaningful way. Students sit in a circle and each have an "I Have...Who Has" card. It is beneficial if the students have a pencil and a piece of paper with them so that they can work out the individual problems. Student #1 begins, reads their "I Have...Who Has" statement, and the student who has the answer to the "Who Has" question, begins to read his/her "I Have" statement. It is important for students to speak slowly and clearly during this activity. Once the questions return to student #1, the activity is complete.