There is also a much deeper truth in that
knowledge !=
understanding.
There is the saying that "what you hear you forget,what you see you forget, but what you
do you will remember" (ok, it is not perfectly true, but I hope you get the drift).
/!\ This is a bit of a rant.
These days the people holding the budget for education often wants to cut down on the part where you get your hands dirty when going from theory to practice. In many ways I am happy that I grew up in the 80's, as many younger have not had the opportunity to try metal- and woodworking, sewing, physical and chemical experiments and plain old cooking as much as I and the people my age did. Today they sometimes hardly get the opportunity at all.
This also happens in higher education, for example engineers going through the theory of load-bearing calculations while not having the opportunity to put them into practice doing experiments. At the other hand they are very good at designing things and put them through FEM calculations in the software tools, but without that practical experience it is harder to get the understanding needed to for example spot erroneous output.
If you have any way to have your kids getting their hands dirty with arts and crafts and learning things, maybe even trying out experiments that compares calculated values with measured values (even as simple as a lever with different arm lengths and weights) I think you will do both your kids and society a favor.