During March 2025, Kevin Schwieger focused on improving the trilinos/Trilinos repository by addressing a critical bug in the finite element method (FEM) basis mapping for tetrahedral elements. Using C++ and leveraging expertise in numerical analysis, Kevin corrected the conditional logic that previously misidentified triangular faces in the FEM discretization, ensuring that subCellDim values accurately mapped to the C1 basis. This adjustment enhanced the geometric and basis function consistency for tetrahedral meshes, reducing potential errors in FEM assembly. The work demonstrated careful attention to code reliability and maintainability, including targeted regression tests to validate the updated mapping logic and prevent future issues.