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If you find an object that might be useful to other educators, please post a comment about it here. Maybe include a link to the object and a few thoughts about how and why it might be useful for teaching and learning.

Taimoor ul haq (Taimoor98) posted "Unit Circle Machine Sine Wave", a great model for understanding the connection between the unit circle and sine wave.

Unit Circle Machine Sine wave

With tight and declining school budgets, 3D-printed science equipment could help. MrFox and Jvanier both shared nicely done Roberval Balances. Are you aware of other 3D-printable science equipment?


Roberval Balance
by MrFox
Roberval Balance
by Jvanier

Earlier this month, James Mendez posted this Electrochemical Cell apparatus. He also included a nicely done PDF lesson plan and handout. His handout presents some electrochemistry background, gives instructions for creating a cell, and asks some questions along the way. This addition is a great help to busy teachers, who want to include more hands-on science but don't have the prep time to develop quality lab materials.


Electrochemical Cell

Fabian Gebhart (fgebhart) recently uploaded a Balloon-powered Hovering Disk that can be used for frictionless motion demonstrations and experiments. He also has developed a nice collection of other 3D-printable science equipment, including a Rolling Cylinder for moment of inertia experiments. Plus, he posts videos of his equipment in action, to help teachers understand the educational possibilities. As I mentioned in a previous post, a few lesson/lab plans or demonstration ideas really helps busy teachers include more hands-on learning in their courses. Thanks Fabian!

Hovering Disk - http://www.thingiverse.com/thing:1936208

Rolling Cylinder - http://www.thingiverse.com/thing:1706712

Hovering Disk - DIY 3D Printed - Frictionless Motion Experiment
Rolling Cylinder - DIY Moment of Inertia Experiment

Here's 3D-printable version of a classic Conic Sections model by jmanlove. Commercial models cost almost $100.


Conic Sections

http://www.thingiverse.com/thing:242440 by @AspiringEdifier. I made one as a Learning Commons fidget toy. Super sweet addition to the "Coffin's Cube" type of table activity. @MikeQ posted this version: http://www.thingiverse.com/thing:23685

Penrose Tiles (kite & dart)
Coffin's Half Hour Cube
by mikeq

How do you think someone could teach using the Penrose Tiles?

Penrose Tiles (being non-tesselating fit in with some of our math curriculum) but by and large for our students they are just an acceleration vehicle or fidget toy. I hear a lot; "these are just relaxing" - "I can't stop playing with them" - for me this is akin to letting students doodle while they think. It helps set the atmosphere for play, curiosity, and creativity.

Once students have played sites like this take on more meaning (I believe) http://kelleymathematics.weebly.com/webquest-directions.html

I designed a clock to help teach a child to tell the time http://www.thingiverse.com/thing:1261900
I am not an educator, just a retired engineer, but I was surprised when I found that one of my grandchildren struggled to tell the time from a normal clock. It seems with the extensive use of mobile phones actually telling the time from a clock is becoming a dying art. If any others out there are experiencing this problem then perhaps this could help.

Teach a child to tell the time
by brlaw

Yep, in a digital world, reading an analog clock may be less mainstream than in the past, but it's still an important life skill. I saw a similar teaching clock for sale, but it costs $30 plus shipping. And, it doesn't have the 3D-printed cool factor like your clock. Thanks for sharing your work with us on the Thingiverse.

I just started a group on thingiverse broadly dedicated to learning.


Please feel free to join the group. I am particularly interested in growing and curating the models in the learning group, so this may become a resource for this group as well.


Welcome, and thanks for mentioning your group. Teaching and learning with new technologies can be challenging, especially when the technology enables us to do things that were difficult, expensive, or impossible in the past. I like your approach to curating models. I think it will be very helpful to see and learn how others are teaching and learning with 3D printing.

One of the expectations for Occupational Therapy Education accreditation is that students are prepared to “fabricate” assistive technology. Toward that expectation, I've made several presentations about 3D printing to our students. Here are a few adaptive devices I've printed and used in those presentations:

Bottle Opener - http://www.thingiverse.com/thing:403031

Cap Wrench - http://www.thingiverse.com/thing:40131

Eating Utensil Thumb Loop - http://www.thingiverse.com/thing:60175

Finger Brace - http://www.thingiverse.com/thing:98564

Knife Assistant - http://www.thingiverse.com/thing:16174

Bottle opener
by piuLAB
Adjustable Bottle Cap Opener / cap wrench
Eating Utensil Thumb Loop Thingy
by kencaid
My Finger Brace curved tube
by shiver
Knife Assistant

Math manipulatives are objects that can help students understand math concepts by manipulating the objects. Here are two well-done manipulatives that help with learning fractions:



Fraction learning kit (Bruchrechen Lernmaterial)
by tuempl
Fraction Blocks

Half the work is having good objects to manipulate. The other half is having a good lesson idea and plan. David Hallowell (aka SpatialMaker) shares both with us: Special triangles plus some lesson ideas, plans, and handouts.

What else could students learn using triangle manipulatives? For more advanced math students, I was thinking common sine and cosine values and relationships in the unit circle (30, 45, 60, 90 degrees).


Special Triangles

I found another great idea for helping students learn volume calculations. It also requires some problem solving.


Volume Blocks