https://www.sciencedaily.com/releases/2020/06/200618102420.htm > One tool to increase spatial visualization skills among college students is a mobile app, called Spatial Vis, which allows students to sketch 2D and 3D shapes on a touchscreen and was developed based on research at UC San Diego. > However, the researchers Lelli Van Den Einde and Nathan Delson, both teaching professors at the UC San Diego Jacobs School of Engineering, feel that it would be beneficial to start teaching spatial visualization skills at younger ages. Indeed, during the COVID19 pandemic they have seen increased requests for use of Spatial Vis by middle school and high school teachers because it works well for remote instruction. One challenge to overcome to enable the teaching of these skills is how to assess spatial visualization ability at lower grade levels.