3 thoughts on “19. Mountain Ranges”

1. Pingback: Ceilings – Mister, is this right?
2. Pingback: Some Math I’m Playing With | Five Twelve Thirteen

3. I made a version of this for Desmos:) https://teacher.desmos.com/activitybuilder/custom/5f3c148afcb4500bd8b7e79a

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