Nov 20th 2019
The document below is shared by a colleague of mine, Jean-Philippe Poutrel, who designs very rich and attractive presentations for his students. Although this document is French it contains very useful and understanble visual resssources.
PiNb-JPPoutrel.pdf
Monte Carlo method Python program is at slide 27/33.
You may also use the video on youtube from "Physics Girl", Caclulating Pi with darts.