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

3D Designed Coin SorterĀ  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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Using 3D design to teach a math concept

7/9/2018

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I like cooperative learning games. I have used something like this made out of laminated paper in the past, so I wanted to see how hard it was to design a prototype for the 3D printer. This is only a 3 inch prototype model because I had to scale it down to fit on my school's 3D printer. That's OK, because prototypes of the second or third try are not generally printed full-scale. As it is shown here, the plus and equals spots are too small to fit a pen or wood pencil, and the squares are too small for the unit squares aka ones blocks in the base ten block manipulatives that are everywhere in most elementary schools. So for demo purposes, we used beads.

https://www.thingiverse.com/thing:2960454
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Thingiverse - The place where 3D designs live

7/9/2018

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Thingiverse is where my educational designs live. I began publishing this summer as part of the MakerBot Certifications Level 1 User and Level 2 Curriculum Creator.  There exists a lot of manipulatives to make for the lower grades, but there are not many lessons that the kids themselves can create, and there are even fewer organized STEM lessons for this age group.

To search all of the designs at Thingiverse:  http://www.thingiverse.com/
To view my files go here:  https://www.thingiverse.com/Heather_M_Miller/designs

Picture
These are the first two education approved designs and curriculum. The little blue graduation cap means they are designs that have been approved by the educational team at Thingiverse.
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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
    • AP CSA
    • AP CSP
    • CSP
    • PGAS
    • ​Engineering Apps >
      • STEAM Letters
    • 4th Sci Math Rigor Hope
    • Tech Fair Competition Club
    • Industry Certification CHS
  • About
  • Blog