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Puzzles in Education /
Puzzle of the Week / |
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Spring Cleaning Day |
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Spring has arrived and Julia has the cleaning bug. The day was so warm
and sunny she just couldn’t help herself. It was spring-cleaning time!
She dusted and washed, moved furniture, shook out rugs, scrubbed
windows, and waxed woodwork. She got into a routine where she would
clean two rooms, then take a break, then she’d clean two more rooms,
and then take a break, until she was done (the start times were every
two hours from 9:00AM to 7:00PM). By the end of the day, she was
exhausted…but the house sparkled with cleanliness!.. |
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Bisection |
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This kind of dissection is a little bit special. Except the fact it is
bisection, its additional rule is to produce mirror pieces, and on top
of that mutually rotated at 90 degrees. Can you stick to these strict
rules while solving? By Zsuzsa Károlyi. |
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Download PDF Version (235 KB) |
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The 8 Angles |
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Eight pairs of identical moons are orbiting a green planet. The goal
is to connect them all to the planet with a link per moon. It's a
harder sequel to The 4 Angles puzzle by the same author. |
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Download PDF Version (62 KB) |
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What Life Has to Offer... |
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Last month's quote was from Eleanor Roosevelt, this month we have a
quote from Theodore Roosevelt. Our past president has a bit of wisdom
to share, regarding the best things that life has to offer us. |
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Toy Strip Origami |
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Three colored strips have to be folded into three colored letters. The
key idea is to keep the number of the performed folds as low as
possible. Is it a challenge that would be TOY to you? |
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Download PDF Version (235 KB) |
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The T Puzzle |
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There are two capital T letters that can be arranged from this set of
four pieces. Form them first and then try a bonus shape - a kind of
isosceles trapezium. |
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Olympic Ice Dancing |
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Sally always looks forward to the Olympic ice dancing trials. This
year, the competition was fierce and there were many outstanding ice
dancing couples. The free style routines, which allowed the ice
dancers to make up their routines without any specific performance
requirements, could be no longer than 3 minutes. As it happened, each
of Sally’s favorite teams used one style of music, each different from
the others, for their freestyle routine, instead of the more common
compilation of musical styles. |
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Grocery Shopping |
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Even though she forgot her shopping list, Harriet spent the morning
grocery shopping for her family. Being the forgetful sort, forgetting
her list was not that unusual, just a bit inconvenient. Although she
didn't usually have too much trouble with the grocery shopping because
her four kids accompanied her and were used to reminding her when she
forgot something... |
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Download PDF Version (235 KB) |
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The Two Queen Question |
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A minimax problem: find the maximum and the minimum number of attacked
vacant cells of a standard chessboard when there are only two chess
queens on it. |
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Coins & Triangles |
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Remove some coins from a big coin triangle containing ten coins and a
lot of smaller equilateral triangles so that no equilateral coin
triangles remain. |
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Download PDF Version (49 KB) |
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The Bat |
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Make the match bat flying away in another direction. What do you
think, how many moves will you need to do this? Just three right
moves... |
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Download PDF Version (268 KB) |
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Yard Sale |
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Saturday was a big day for yard sales – the weather was gorgeous and
people from all around town had yard sale signs out before their
homes. Many were tempted to stop and many items found new homes that
day. Five people in particular were very pleased with their purchases
as each got a piece of furniture in good shape and at a very good
price... |
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Download PDF Version (184 KB) |
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Last Updated: November 22, 2007 |
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