Key data analytic skills were taught such as: define a research question, collect and consider data, interpretation of graphs, graphical data, interpretation of averages and drawing conclusions from data. The students used CODAP (https://codap.concord.org/) to explore and interpret their data. Furthermore, students studied basic statistical concepts, such as appropriate measures of central tendency (mean, mode, median) based on the Catalan national curriculum.

After the implementation of the first pilot project, it was decided that explicit focus was needed on the followings: (1) defining a research question (2) enriching data collection tools (3) acquiring notion of distribution as an aggregate group of data values, (4) using of dot plot representation to visualize distribution shape, and (5) a trial activity for exploring how to use CODAP to organize and analyze data before the actual project.