Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Drawing Three Dimensional Figures
Get independent practice drawing three-dimensional figures. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
National Council of Teachers of Mathematics
The Math Forum: Oblique Drawing
This Web site provides an explanation for what oblique drawings are. Compares oblique drawings to isometric drawings.