Dr. Audrey C. Rule
Department of Curriculum and Instruction
University of Northern Iowa
Cedar Falls, Iowa
1997, The Clay Minerals Society
is given to teachers to reproduce this work for classroom use
only. All other rights reserved. Sale, distribution, or other
reproduction of this work is expressly prohibited without written
permission from The Clay Minerals Society.
pdf file can be downloaded that contains all of
the images necessary to play Crystal Symmetry Bingo. Click
here to download the file.
Range of Players: Ages 8 years to adult
This game provides students with practice in recognizing the point
symmetry of designs.
of the Game: Photocopy each page of this game onto light
colored heavy card stock paper. Laminate each page if possible.
Cut apart the four game cards on each page and the nine calling
cards on the other page. Assemble a set of buttons, pennies or
Bingo chips to use as markers during play.
Each player is given a Symmetry Bingo Card and several markers.
The calling cards are shuffled and placed face down in a stack.
The caller chooses the first calling card from the stack and says
the point symmetry symbol, for example, "3m". Players
search their cards to find a design with that point symmetry.
All cards contain designs with each of the nine point symmetries.
The player covers the correct design with a marker.
The caller then calls the next point symmetry symbol.
Play continues until someone finds that he/she has marked three
designs in a row. The player calls, "Bingo!" The player
must correctly identify all three designs that form the row. The
caller checks them using the calling cards.
All players trade cards. The winner becomes the caller for the
next round of Symmetry Bingo.