Unit 5 Multiview Drawings 75 Copyright Goodheart-Willcox Co., Inc. Another spatial visualization tool involves observing a string of connected cubes drawn pic- torially, with a collection of similar strings of cubes turned and tilted at another angle. The altered views are arranged in a multiple choice format. In the original version of this instrument, two of the choices are the same configuration of cubes, while the other two configurations are different from the original. See Figure 5-3. A surface development test involves the unfolding of a prism with angled surfaces or a cube with graphic patterns on each side, Figure 5-4. This requires selecting a folded object corresponding to the flat pattern. These skills are best put to use in Unit 21, Precision Sheet Metal Parts. Another, quite different, test involves illustrations of a sheet of paper being folded multiple times and then punched with one or two holes. The correct “unfolded” solution is then selected from a set of options, Figure 5-5. These examples are intended as an introduction to the different types of spatial visualization instru- ments in use. Additional resources are available and can be used for further practice. The activities at the end of this unit include a variety of exercises for visualizing objects and drawing views. These activities are designed to help improve spatial visu- alization skills. Similar activities are presented in Units 6 and 7. The concepts and skills described in this unit are foundational to print reading. The student who masters these skills will have built a firm foun- dation for understanding the remaining units in Goodheart-Willcox Publisher Figure 5-2. The Purdue Spatial Visualization Test— Visualization of Rotations can be used to measure or evaluate an individual’s spatial skills. See page 86 for solution. is rotated to is rotated to as A B C D E Goodheart-Willcox Publisher Figure 5-3. This mental rotation spatial visualization instrument challenges the individual to find two additional correct alternative rotations of the given object. See page 86 for solution. Given A B C D Choose two that are the same as given Goodheart-Willcox Publisher Figure 5-4. Surface development spatial visualization exercises can increase print reading ability, especially within the realm of sheet metal pattern drawings. See page 86 for solution. Given A Choose the 3D cube solution that corresponds with the flat pattern B C D