Expand Geometric Thinking with Elsys

by John Goering



Elsys uses commands in L-systems to draw geometric designs. L-systems enable us to use relatively few commands to produce complex shapes. To learn more about L-systems, select one of the options in the “Extra” menu. To see the commands for the current L-system, select “Show L-system Text” in the “Edit” menu. For your first experiments with L-systems, select “L-system Order” in the “Edit” menu. Then carefully observe the number of the current order and type in a smaller order.

L-system Activities

These activities use the Elsys program to provide training in L-systems. Before assigning an activity, the instructor should work through it and make an answer key. L-systems provide an interesting enrichment opportunity that can expand geometric thinking skills.

Elsys is a portable program: it runs when opened without requiring installation.

Note: Since Elsys is created by an individual and not registered in major software databases, your computer may prompt you to block the app when you launch it. If you see a Windows SmartScreen warning, choose More Info, then Run Anyway.

Download and extract Elsys with instructions

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Updated October 2018.

 

 

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CONTRIBUTOR: John Goering

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