I have tried to explain how computers work to people who were determined not to understand it. Once I had ditched any mention of numbers or maths and described

I have tried to explain how computers work to people who were determined not to understand it. Once I had ditched any mention of numbers or maths and described "the toilet paper game" where you get a marker pen and make marks on a roll of toilet paper, then I found they had no problems. Personally I reckon that you can teach programming to anyone who can learn a card game.