This is a remix of Color Week from Illustrative Mathematics, https://tasks.illustrativemathematics.org/content-standards/tasks/1110.   The purpose of this activity is to give students practice in collecting data and answering questions related to the gathered data that is displayed in a picture graph to support sol K.11a and K.11b.  Students wear a different color shirt each week to represent the color of the week, collect the data by coloring a shirt, place it on the graph, and count how many were worn of that color.