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Ideas, Thoughts, Things, & Awesome Things to Look Into - from the Computer Lab

3D Designed Coin Sorter  STEM Lesson

7/27/2018

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I published another STEM lesson for lower elementary school on Thingiverse.  This is a gravity fed coin sorter. I did this lesson a few years ago in the second grade, and the kids used poster board, rulers, and horribly dull school scissors.  They improvised layering tape over the poorly cut holes, and a few of the kids got them to work. We taped them onto the wall and tried them out.  This is the 3D printed version of the iterative process. 

I have access to a very small 3D printer, so I had to print the two designs in two pieces each, one top and one bottom.  The design with the holes worked well considering I did not have the bottom printed for the video.  The design with the pegs did not. My measurements were off just a bit, so the coins didn't pop off like they were supposed to do.

I used the U.S. Mint's reference sheet for sizes of the coins.

Here is the link with the STL files, and lesson plan with YouTube videos of example gravity fed coin sorters.  https://www.thingiverse.com/thing:3023073

coin_sorter_gravity_fed_lesson_plans.pdf
File Size: 5785 kb
File Type: pdf
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    Heather M. Miller

    This is a space where I post my thoughts on things and ideas in the Computer Lab. I am a K-12 certified Computer Science, Business Education, and Engineering and Technology teacher with ESOL and Gifted Endorsements.

    I'm writing this for myself
    and my colleagues as part of my own teaching practice day-to-day, and for my own self reflection.

    I'm NOT doing this blog for compensation or free products.  If I ever change that personal policy, I'll make that apparent.

    ​Any opinions stated herein are mine and not my school district employer's. 

    Enjoy!

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  • Chamblee High School
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    • 4th Sci Math Rigor Hope
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    • Industry Certification CHS
  • About
  • Blog