Class Openers

Class Opener – Day 17 – Time for a Card Trick

Today is the last day of school before a 4-day weekend. Since we have been talking a lot about cards and probability in class, it’s a great time for a card trick to maintain enthusiasm before a few days off. Enjoy a glimpse into the craziness which is my classroom…

A “how to” guide for this trick is given here by Mismag822 on YouTube:

In the instructional video, you find that the secret to this trick lies in the cards being face-up the first time around, which does transform the order of the cards during a “switch”. Later, when the cards are dealt face down, two single cards placed face down individually is equivalent two cards switched and placed faced down. For my geometry folks, there is a cool transformation introduction here.


By Bob Lochel

HS Math Teacher. Hatboro-Horsham School District, Horsham, PA.

One reply on “Class Opener – Day 17 – Time for a Card Trick”

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