Before jumping into your own plant constructions, be sure to go through all of the technical exercises and demonstrations included in this lesson. I strongly recommend drawing along with them as well and following them closely when doing so. If you choose to, you can include your attempts at following the demos in your homework, but they should constitute less than half of your plant drawings.

https://drawabox.com/lesson/3/1/homework

I am a little confused by the wording as well. The Instructions say you can use your attempts at following the demos for homework, but constitute less than half of the total plant drawings. I believe it means that you can only submit up to 3 attempts at following the demos out of the total 8. (The rest being on your own)