Number Rods (unlabeled)
thingiverse
These are "number rods" in which you can print these in any color so that each color represents a specific length. These can be used for number sense, addition/subtraction, multiplication/division, and fractions. If you couple these with some rod hinges (separate design I made) you can use them for geometry as well (each side of a figure will be color coded for length).
Download Model from thingiverse
With this file you will be able to print Number Rods (unlabeled) with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Number Rods (unlabeled).