GraviTrax Digital Logic - Lesson 3: XOR Gate

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Hey kids and parents! Have you ever wondered how a computer works on the inside? It's called "digital logic", and we're going to learn it the fun way...by building computers out of marbles! Each Wednesday I'll release a new video with a new digital logic circuit you can build with the GraviTrax marble run system. If you don't have a GraviTrax set, download the free GraviTrax app from Ravensburger and run each track virtually. sGraviTrax calculators...I call it GraviCalc.

Lesson 3: The “XOR Gate". Build this week's GraviCalc track to see how the XOR gate works. In this lesson, kids will not only build a track, but will build a logic table of its inputs and outputs. You can have them hand-draw the logic table, or print out the blank XOR Gate Logic Table to fill out during the lesson. Here's the links:

Blank XOR Gate Logic Table for Kids to Fill Out:

GOOGLE SHEETS FORMAT - https://docs.google.com/spreadsheets/d/1xFGzHdr6W7400zNd5CwH6k8PXQeOR4Z31IS-7GICBk4/edit?usp=sharing
PDF FORMAT - https://drive.google.com/file/d/1Lg-YnRsdTqUgM6ZTzv0llxRTK4XuURkn/view?usp=sharing

GraviTrax sets required: Any Gravitrax Starter Set (Starter, XXL, Vertical, Obstacle, or Speed)

Get build instructions for the XOR Gate track by entering this code into the Ravensburger Gravitrax app: WMWNWAVAKC
Or use this direct link: https://gravitrax.link.ravensburger.com/code/WMWNWAVAKC

Video shot on an iPhone SE (2020). Video processed in iMovie for iOS. Cover photo made in Snapseed app for iOS.

#gravitrax #marblerun #homeschool #STEM #digitallogic #computers #calculators #kugelbahn #computingwithmarbles
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