Instructional Video3:17
Curated Video

HOLIDAY RIDDLE - In The "12 Days Of Christmas," How Many Total Gifts Are Given?

6th - 11th
You may remember the song "12 Days of Christmas" in which each day you get N gifts, plus all the gifts from the preceding days. How many gifts are given in total? What's a general formula? Algebraic proof...
Instructional Video5:59
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Calculate When New Years Occurs (The Day Of The Week) Until 2099!

6th - 11th
January 1, 2015 is a Thursday. When will New Years Day be in 2017? You can do this in your head! Follow-up video - calculating the day of the week from a date https://www.youtube.com/watch?v=UsStBxY9STw Calculating the day of the week...
Instructional Video2:54
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The Best Way To Arrange Eggs Mathematically!

6th - 11th
When you remove eggs from a carton, you may want to select eggs so the weight is evenly distributed and the carton will be more stable to hold. This video presents three different methods to select the eggs in a logical way. The third...
Instructional Video1:59
Curated Video

Why You Shouldn't Deal To The First Ace To Pick The Dealer In Poker

6th - 11th
People often choose the dealer in poker by "dealing to the first ace." Is this a mathematically fair system? It is not! The video illustrates how the system favors early people being dealt cards. Calculating the theoretical expected...
Instructional Video0:58
Curated Video

Now Available - "Divide Numbers By Connecting The Dots"

6th - 11th
Available for Patreon supporters, who can also get other exclusive rewards: http://www.patreon.com/mindyourdecisions The song in the video is Do Do Do by Silent Partner, downloaded from YouTube Audio Library. If you like my videos, you...
Instructional Video0:57
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The Game Theory Solver: Solve Any 2x2 Matrix Game Automatically

6th - 11th
The solver: http://mindyourdecisions.com/GameSolver.html The game theory solver will automatically calculate the Nash equilibria in pure and mixed strategies for 2x2 games. Get my book on game theory! http://amzn.to/1uQvA20 The song in...
Instructional Video1:15
Curated Video

Make A 4x4 Magic Square From Your Birthday!

6th - 11th
I have made a website so you can automatically generate your 4x4 birthday magic square: http://mindyourdecisions.com/MagicSquare.html A birthday magic square has all rows, columns, diagonals, and most 2x2 blocks add to the same number....