Show students this video by MIT, explaining what Fractals are: https://www.youtube.com/watch?v=WFtTdf3I6Ug Build this projects with your students to display 243 triangles. Then leave it up to the students to get as many triangles inside as they can within the time of the lesson.
Extension task: Ask students if they can change the code to get a user prompt on how large they want their triangle to be
