Your students will love this QR activity for reviewing linear functions. Questions include finding slope, identifying the equation of a given line, solving for slope-intercept form, and more.
It is designed for middle school and takes approximately 25 minutes to complete. I have made all the locations in this scavenger hunt generic to any school.
Students each start at a different location in groups, solve problems and scan their answers using a QR reader on their phone. The code leads them to the next problem until they have completed the hunt.
My students absolutely love this activity. They always ask when we're going to do it again!