For our first fifty boxes in the challenge, we're going to be drawing freely rotated boxes in three point perspective, with all three vanishing points marked out right on the page. Similarly to the rough perspective boxes exercise in Lesson 1, we'll be estimating our lines' convergences towards these points, but having the vanishing points marked on the page will give you something more obvious to aim for.
This will force those vanishing points to be quite close, which leans into the second aspect of the challenge - the foreshortening on these boxes will be quite dramatic, meaning the convergences will be very close.
As with most other exercises throughout this course, we will be freehanding our lines here, which means you will be using the ghosting method and going through the planning, preparation, and execution phases as explained here in Lesson 1.
Each page will contain 5 to 6 boxes - no more, no less. Be sure to make good use of the space available to you, and don't be afraid of having your line extensions run through other boxes. Drawing bigger boxes helps us engage our whole arm when drawing, and helps us get more out of the exercise as a whole.
Before starting your next page, you will apply line extensions as explained in the video to check how consistent our convergences are, so we can study the behaviour of our lines as they recede in space. Make sure you're extending them in the right direction, so the line extensions are able to provide us with useful information. One thing that helps with this is that for the first line extension of each set of edges, start from the center point of the Y and extend back along each arm.