Isometric Drawings

Correct Isometric view:

Possible Student Misconception:

A student just beginning to learn about drawing an isometric view given the different top, front, and side views may begin by drawing the top view of the drawing as shown at the top of the worksheet. A student who is just beginning to learn how to construct isometric views from the different orientations may believe that by constructing the top view correctly, the left, front and right views will then automatically be correct as well. Beginning students may look at the left, front, and right view and see that their drawing with the top view does have three up front and then a middle row with three cubes. Although there are two cubes in the row to the left and the row to the right, a student who does not completely understand this concept yet may simply ignore the extra two cubes, leaving the drawing as is and claiming it to be correct. The student may also not yet understand that cubes which are hidden behind other cubes will not be seen when looking from the front or side views.

Possible Student Misconception:

A student who understands most aspects of drawing an isometric view from the top, left, right, and front view may construct a drawing similar to the one to the right. This view correctly identifies the left, front and right view but fails to recognize the top view. Working to piece together all parts of the view can be a a very difficult concept to grasp, resulting in students piecing the isometric view together view by view. In this case, the student possibly would have pieced the drawing together by starting with the front view and then working out to the right and left. Once achieving these correct views, the student may then have a difficult time finding the top view without ruining the correct left, right and front views, therefore resulting in them leaving the drawing as shown, to account for at least three correct views. A student who produces a view like the one to the right has the basic understanding of constructing isometric views but just does not yet completely understand how to piece all the views together to form an isometric view consisting of the views given.