Help students develop a clear understanding of quartiles and interquartile range (IQR) with this interactive HSS-ID.A.2 bundle! Learners practice finding Q1, Q3, and the IQR from data sets while learning how these measures describe the spread and variability of a distribution. Each activity includes guided practice with increasing difficulty, helping students build both procedural fluency and conceptual understanding of how IQR is used to analyze data and identify outliers. This flexible,