Geotechnical engineers solve problems related to building many types of structures into the earth. While they do not build technologies themselves, they are surely experts on recommending where to build them. They are soil experts, knowing about the layers of the earth, types of soil, and the effects of erosion.
As the culminating design challenge to their unit on geotechnical engineering, second graders used map skills and all that they had learned about soil types, erosion and soil compaction to make a recommendation about where to build the TarPul.
Using model TarPuls, students completed strength tests with two different sites. Based on their results, they had to provide evidence as to where the TarPul should be built. Way to go 2nd Grade!