Please drop in on (and follow and like!) our 2017 Hackaday Prize entry, Hacker Calculus.
The summary: Many hackers are self-taught and avoid powerful math tools that might
let them take creations to the next level. We aim to create a structured
set of modules consisting of hands-on 3D printing and electronics
projects, with thorough text documentation and minimal supporting
algebra. These modules will teach calculus in this hacker style both
for self-learners and others, like the visually impaired, who need
hands-on learning. When Isaac Newton developed calculus in the 1600s, he
was trying to tie together math and physics in an intuitive,
geometrical way. But over time math and physics teaching became heavily
weighted toward algebra, and less toward geometrical problem-solving.
However, many practicing mathematicians and physicists will get their
intuition geometrically first and do the algebra later. We want to let
people get to that point directly without passing through (much)
algebra, particularly people who learn best by making something.