(Students who used the viewer were more likely to get the problem correct because using the viewer removed the ambiguity of where atoms in the unit cell could be found. I gave students the option of using it to help them complete an exam question and ~25% of my students used it on the exam. I also asked, "As a result of your work in this class, what GAINS DID YOU MAKE in your UNDERSTANDING of each of the following?" Here are student responses for extended (solids) structureĪs you can see, there are not great differences between the year I used Studio Viewer (Spring 2016) and the year I used only model kits. The students responded more favorably to the solid state model kits, but 80% of students thought that both the model kits and Studio Viewer provided much or great help. “HOW MUCH did each of the following aspects of the class HELP YOUR LEARNING?” On the end of semester SALG in 2016, I asked students about the solid state model kits and Studio Viewer. These files can be opened on student devices so that students can individually work with 3D models of extended solid state structures. This activity describes how to generate DAE files (3D interchange file format). However, most students have smartphones and tablets. The geometry of the unit cell is defined as a parallelepiped, providing six lattice parameters taken as the lengths of the cell edges (a, b, c) and the angles between them (,, ). ![]() The unit cell is defined as the smallest repeating unit having the full symmetry of the crystal structure. While students can work with the free demo version of CrystalMaker on a computer, most students don’t bring their computers to class. Crystal structure is described in terms of the geometry of arrangement of particles in the unit cells. ![]() Since there is no lab directly associated with my class, all of our visualization activities are done in a standard lecture room during one or more 50-minute class periods. I believe that it’s important to guide students as they explore 3D extended structures. ![]() CrystalMaker files on a computer (I have a license for my laptop).static 3D models (generated by CrystalMaker).My experience is that the more representations students can master, the more likely they are to find one that helps them understand solid state structures. ![]() I’m interested in any tool that helps my students visualize solids.
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