Each week we feature a new puzzle that you
can print out in black and white on a single page and use as a
black line master with your students. Schools have reported great
success by encouraging families to work on the puzzles together at
home. Print out the PDF file, file the solution page and make
copies of the Challenge page to hand out to your students.
As Mr. Hackett picks up his
morning paper, one of the sheets slips out. Simply by seeing the two
numbers on the pages facing you, can you deduce how many pages are in
the whole paper?
Mrs. Holderman, the math teacher,
has given Karen a special math problem. She is to arrange the numbers
from 1 to 6 in the triangle so that the sum of each straight line of
three circles gives the same result. How would you place the numbers?
In Arnold's Tic Tac Toe, three in
a row loses! You are playing the "O"'s and it is your turn. What move
can you make to force Arnold to end up with three "X"'s in a row, so he
loses?
Dora K. Hatton, A. K. Barnes, and
J. R. Sweeney had a big chuckle at the convention when they realized
that the letters of their names, if rearranged, spelled out the names of
each of their home States. From what State does each of these delegates
hail?
Mrs. Holderman, the math teacher,
has given Karen a special math problem. She is to arrange the numbers
from 1 to 6 in the triangle so that the sum of each straight line of
three circles gives the same result. How would you place the numbers?
Roland has sketched three
different front views of a Teddy Bear for a new building project. From
the three sketches, can you select the front view that Roland chose to
make the three-dimensional Teddy Bear illustrated above?
Buzzy the furnace repair man was
told to go around back and come in through the basement door. The door
had no knob or latch, but was adorned with the lettering shown in the
drawing above. How will Buzzy get in?
It can be a little Christmas puzzle gift to entertain you for a few
minutes at least - only three triangles hidden in a Christmas Tree and
the extra one that has to be found.
Two identical cannons are aimed
at each other, their shells fired simultaneously at exactly the same
speeds. Ignoring wind resistance for a moment, will they hit each other
or will they miss?
Roland has just completed a new
music box. When he spins the green belt wheel clockwise, will the two
skating couples spin in the same direction or in opposite directions?
Judy and Dan are the first to try
out the latest ride at the amusement park, an enormous mobius strip. If
the cars are traveling at the same speed, will there ever be a collision
(except possibly Judy's head on the superstructure)?
When the Bambeani triplets were
born they each received an identical jumbo birthing block. At age 65,
they still have their blocks and if asked, will proudly show them to
you. With the visual information shown, can you tell what color is on
the bottom face of each block?
Travel along the edges of a dodecahedron (a three-dimensional solid with
twelve pentagonal faces) through the 20 corner points of it and then
finish at the start point.
When Helen and Frank were married
21 years ago, Frank was three times as old as Helen. Today he is twice
as old as she. How old was Helen on her wedding day?
Bob has just been handed a note
from Linda, which appears to be written in some sort of code. From the
clues she has given, can you help Bob break this code and read the
message?
Kimberly has been told by the
jeweler that out of the six earrings he has left, he thinks two are a
match. Will Kimberly find a matching pair? If so, which two earrings
match?
Wendy has cats. All but two of
them are Siamese, all but two of them are Persian, and all but two of
them are Main Coon. How many cats does Wendy have altogether?
