The Counting Principle 1st
The Counting Principle 2nd
Cool Math 4 Kids - Concentration
Cool Math 4 Kids - Concentration 2
Cool Math 4 Kids - Crab Race
Keys - Probability of choosing the right one
Monty Hall Puzzle - Probability
BBC Education - Fish Tank
Chances - Roll a Pair of Dice
Virtual Manipulatives - Stick or Switch
Quia - Probability Battleship
Quia Jeopardy - Ratio, Percent, & Probability