Fibonacci Sunflower 8 (Pen Version) - Click the Green Flag. Use the Slider to change the number of colours (0-21) used. Select 0 to trace out the single Spiral. Click the Stage to switch backdrops. As the "doctored" image of a Sunflower used by Fibonacci Sunflower 7 might be viewed as adjusting the evidence to fit the theory I am trying to prove, this version uses an image found on the Web, which apart from being cropped and reduced in size is exactly as I found it.
Created by @gregatku for use in Classes for Kids Unlimited. The very LAST Final follow-up to the Fibonacci Spiral exercise. Here we draw "florets" in ever (slightly) decreasing size using Pen Down/Pen Up with the Scratch Pen. Each floret is drawn after turning the number of degrees that divides the circumference of a circle into 2 arcs that are in the Golden Ratio with each other (the Golden Angle - close to 137.5 degrees).
