Find pairs or connect questions to the right answers .
Use the chord to connect pairs.
When you're done, flip it over to see the solution.
You can download the FreeCAD files here:
I added an Inkscape file (FindPairs_Template.svg) to print the exercises.
Note:
This file uses layers. If you want change the layout you have to unlock them. Don't forget to disable some of them before printing (hints in the layer names).
The SVG file also contains the preferred settings for snapping in Inkscape, this helps a lot. When you open the file, make sure the following snap features are enabled:
Have fun
Nothing special
Infill: No preference
Layer Height: 0.2 mm
Supports: None
The author hasn't provided the model origin yet.