# Recursion > Teacher: Ms Punter ## Objectives: 1. Discuss fractals 2. Look at recursion 3. See how recursion can be used to make fractals ---- This is a fractal - Mandelbrot. Can you describe it? {%youtube Ao9N3kNBJQY %} https://www.youtube.com/watch?v=Ao9N3kNBJQY ---- Fractals are patterns. A perimeter or a surface area of a fractal __can__ be infinite. Perimeters or surface areas of fractals are made up of the shape of the same fractal but at smaller scale. Fractals are driven by recursion. ![](https://i.imgur.com/QGthqEc.gif) ---- ## A recursive function is a function that calls itself ---- <iframe height="600px" width="100%" src="https://repl.it/@missPunter/CountdownRcrsv?lite=true" scrolling="no" frameborder="no" allowtransparency="true" allowfullscreen="true" sandbox="allow-forms allow-pointer-lock allow-popups allow-same-origin allow-scripts allow-modals"></iframe> ----
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