These year 2 students painted their black trees (silhouettes) straight on the paper without pencil planning first. They also painted from their own mind, realistic or stylised, whatever they preferred. I did a few sketches on the board, but there were no photos or artworks to copy (partly because I didn't have any on hand, but also because it's good for them to come up with their own shapes).
They were asked to touch all four edges of the page with their tree. Later in the day they returned and filled in the spaces with colours, again whichever and wherever they wanted. The effect is a bit like stained glass. Probably a little similar to the last post… The chance for this lesson came up on the day and it happened as I thought of it! But I'm sure I've previously seen similar lessons online, here's one by Marcia from Art Is Basic.