The next four school days are exams for my students in Natural Science & Engineering, part of the exam will involve their knowledge about the tools they used this semester: digital scales with different precisions, multimeters, and Kill-A-Watts. The Legos are for modeling conservation of matter equations for combustion.

They have their engineering journals where they can refer to their notes about operation and usage but having the device to use makes for one final check during the exam.