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Geoboards
This practical challenge invites you to investigate the different squares you can make on a square geoboard or pegboard.
Age 7 to 11
Challenge Level
Here is a table containing all the letters of the alphabet:
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A
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B
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C
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D
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E
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F
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G
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H
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I
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J
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K
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L
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M
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N
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O
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P
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Q
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R
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S
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T
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U
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V
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W
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X
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Y
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Z
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It has six rows (going from left to right) and five columns (going from top to bottom). The Vikings communicated in writing by making simple scratches on wood or stones called runes. Sometimes they were written in a secret or coded way. Here is 'was' written in NRICH's coded runes:
Can you work out how the code works using the table of the alphabet?
Here is a message in secret runes:
Can you decipher it?
Perhaps you can make up your own message.
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NRICH is part of the family of activities in the Millennium Mathematics Project.
NRICH is part of the family of activities in the Millennium Mathematics Project.