Sketchbook or sheets of blank paper
Graphite pencils, sharpie/permanent marker (or a washable marker)
Hard surface to support your drawing. If you're using loose paper, use clips or drafting/painter's tape to secure your paper to your drawing surface.
An object you can draw on with marker. You can draw on your hand with a washable marker or choose another object.
WATCH: How to Draw With Cross Contour Lines (~9:50 min.) -- https://youtu.be/oL8ns821F84
Follow along with the video and draw contour cross contour lines around your object.
Once you finish marking your lines, draw the object & cross contour lines in your sketchbook.
Move to another vantage point and repeat the exercise (using the same object).
Write the date & title (1-2d: cross contours) on your paper.
Be sure to save photos of all your sketchbook exercises/assignments in a folder on your computer/drive!