Curated OER
The Monty Hall Problem
In this the Monty Hall problem instructional activity, 7th graders recreate the TV gameshow, Let's Make a Deal, and figure out the probability of choosing one door over another in order to win.
National Council of Teachers of Mathematics
The Math Forum: Classic Problems From the Dr. Math Archives
Several classics in the world of math are demonstrated on this Math Forum site. Clear explanations are given for each problem and links are included for extensions.
Mathigon
Mathigon: Probability and Discrete Math: Monty Hall
This lesson focuses on the Monty Hall game where you select one of three doors. It explains your odds based on your choices.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: The Monty Hall Problem
This page gives an example of a probability problem and explains it very thoroughly.