We’re working with one-point linear perspective in 6th grade at the moment. I like to use my TV display for demonstration. I’m having pretty good results from laminating drawing paper and using wet erase fine-point markers to draw the steps while students follow along. Dry erase was handy but I prefer pens with a finer point than I have been able to find in dry erase. I keep a box of baby wipes at my desk for several uses but they are great for removing lines of wet erase marker from the demo sheets.