Geometry: Partitioning a Line by Intervals
https://docs.google.com/document/d/19J9-jKlqaE_dv4efdSshybk43woJRbsmN7VBB3KU2hY/edit?usp=sharing
https://docs.google.com/presentation/d/1qRQW2f-enF26owu0tnAJFJCXQUGtqdtDV_-UJY3wArs/edit?usp=sharing
Geometry Lab: GeoGebra
