Visualizing an object. 

 - videocassette (VHS)(9 min.) :  sd., b&w, 1/2 in. 
<br/><br/> Explains the steps in understanding blueprint plans including visualizing an object by its different views; length, height, and depth (or thickness). Each view reveals something about the shape and size of the object not always apparent in the other views. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Visual perception.<br/>Techanical drawings.<br/>Blueprints