Data analysis can be very simple, like making a list of items and writing how many you have of each in parentheses, or creating and talking about a bar graph whose bars are higher for snowy than rainy days in the month of January. Whether the process involves specialized statistical software or markers and chart paper, what remains the same is that data analysis gathers information in a quantitative way (how many?), and then organizes it in some way that makes comparison and generalization possible.
Copyright: Erikson Institute’s Early Math Collaborative. Reprinted from Big Ideas of Early Mathematics: What Teachers of Young Children Need to Know (2014), Pearson Education.