A hands-on, student-centered PBL where learners investigate how social media affects teens by collecting classroom notification data, designing and administering a 10‑question survey, analyzing results, and presenting conclusions. Students practice data collection, sampling, descriptive statistics (averages, dot plots), survey design, peer review, and communicating findings via slides, podcast, video, or paper. What students do: Tally in-class phone notifications and summarize app totalsCreate 1