(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.
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Using => to mean "then"
Spelling error
Using one symbol for two different things
Speaking too softly
False statement
Unexplained diagram
Misattribution
Incomplete board erasing
Unconventional notation
Unclear whether something is a hypothesis or a conclusion
Not enough written to stand alone as a coherent exposition
Conditional statement with "if" and "then" not written
Unclear logic
Graph with axes not defined
Unmotivated definition
Illegible handwriting
Terminology or symbol used before it is defined
Unclear when the talk is over
Proof steps skipped without saying so
Did not plan what to write on board
Unclear whether something is a definition or a statement