thingiverse
Array Rods (square)
These Array Rods have the numeric representation on one side and square-based row/column of that number on the reverse. Similar to Cuisenaire rods and other color-coded length models, array rods are centimeter based. On one side is the numeral representing the rod's value and on the other is a row/column of circles. They were created for 2nd and 3rd grade mathematics to facilitate learning multiplication and division with rows and columns in mind. However, they are also very useful with 1st grade students in learning to compose/decompose numbers for addition and subtraction.
Update (Aug 21, 2023): I tweaked the file so that the numbers are now on the baseplate and the squares are on top. This seems to improve the quality of the prints slightly. Also, I added a 100 plate in the files to allow this to be used with larger multiplication/division problems (i.e., the area model for multiplication & division).
Direct link to the original creator's page
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Model Specifications
Frequently Asked Questions
How do I download Array Rods (square)?
Click the "View on thingiverse" button above to visit the original model page on thingiverse. You can download the STL file directly from the creator's page for free.
What 3D printer can I use for this model?
This STL file is compatible with most FDM 3D printers (Creality Ender 3, Prusa MK3S+, Bambu Lab, etc.) and resin printers (Elegoo, Anycubic). Check the original page for recommended print settings and materials.
Is this 3D model free to download?
Yes, this model is available as a free download on thingiverse. Some creators accept tips or donations.
Can I modify this STL file?
Most STL files can be modified using free software like Blender, TinkerCAD, or Meshmixer. Check the license on the original thingiverse page to see if modifications are permitted by the creator.