Throughout the year, students continue to refresh their understanding of the necessity for observation through the five senses, the impact of the changing seasons, and the value scientific method. As a result, these basic scientific tools remain in memory and practice.
In second through fourth grade, students learn to create line graphs and apply this skill to their investigations. In addition to increased work with data, students in grades three and four are gaining ample experience in designing and following systematic investigation procedures. Furthermore, students are increasingly writing claim-evidence-reasoning format conclusions at the end of investigations, which links data analysis skills with written language skills. This approach teaches how to: evaluate experimental procedures; identify quantitative relationships given in graphs; analyze graphs; and use graphic information to make an inference.