Build a Marble 2 BIT ADDER - Homeschool Digital Logic #10
Channel: Masked Marble
Date: 2021-07-08

Build working computers out of marble runs! Build a new digital logic circuit each week using the GraviTrax marble run system. GraviTrax marble calculations = GraviCalc!
Recommended for ages 8 and up.

Lesson 10: 2 Bit Adder with Auto-Loading Carry Bit. Build this week's GraviCalc marble computer that adds two 2 bit (binary digit) numbers. And this computer incorporates a fun GraviTrax trick!

GraviTrax sets required: Two Gravitrax Starter Sets (Starter, XXL, Vertical, Obstacle, or Speed)

Get build instructions for this week's marble computer by entering this code into the Ravensburger GraviTrax app: JR9TT8ATPM
Or use this direct link: https://gravitrax.link.ravensburger.com/code/JR9TT8ATPM

Print the blank 2 Bit Adder Logic Table for your kids to fill out as they run the 2 Bit Adder Marble Computer:  https://docs.google.com/spreadsheets/d/1lvDO9m6PtUR52LsYkyUqsT232S4D7ucY7h5dHtxrO4M/edit?usp=sharing

Video shot on iPhone SE (2020) using DJI OM 4 stabilizer. Video processed in iMovie for iOS. Table graphics generated in Google Sheets app. Cover photo assembled in BeFunky Photo Editor

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