Spirolaterals vs Sisyphus +Code

Spirolaterals allows you to explore geometric line designs based on applying a simple rule to a number sequence. Be warned though: spirolaterals can be very addictive! You can create your own spirolaterals by entering a number or text like your name. Or you can explore the gallery of 80 spirolaterals by tapping Surprise Me! Spirolaterals raise many interesting questions: Which ones repeat and why? What kinds of symmetry are present? What happens when you use a palindrome or when your numbers increase or decrease by the same amount? I have used Spirolaterals in my math classes for many years, and students always find them fascinating. They try their name or phone number. They try to create some particular pattern. This year some students spent hours trying to create a 4x4 grid! If you create an interesting spirolateral, email me and I may include it in the Surprise Me! gallery in a future version, with full credit to you!

Sisyphus is a kinetic sculpture that rolls a ball through sand, forever creating and erasing beautiful patterns. Sisyphus is a kinetic art piece: it is an instrument. As a musical instrument plays songs, Sisyphus plays paths. This app provides a coding interface for creating unique and interesting algorithmic sand art patterns. Create and save your code using drag and drop blocks, JavaScript, or Python. It includes a tutorial to learn how, Challenges to test yourself, and Examples showing some code concepts. Connect to your Sisyphus to Print directly onto the sand, and save for later playback.