Time for MATH MINUTE! (provide your favorite theme music here). 

  Get out your paper & pencil, because I have a new puzzle for you!!


 

PUZZLE #4   How many squares do you see?     Oct. 2 – 6

 

       This is a fun & easy one, all you have to do is count!

      

       I was looking at the window below one day and I saw a lot of squares.

       Do you see them?

       Count the total number of squares of all sizes in the following window

of a 3 by 3 set of squares?

     

      Now count the number of squares for this window of a 4 by 4 set of squares.

 

      If you keep track of how many squares there are of each size you will find

there is a pattern here - right?


       Hint: In the 3 by 3 window you have 9 small squares, _­­?_ medium size

squares, and 1 large square.


       Check out the numbers in the 4 by 4 window above. How many squares of

each size are there?  (Hint: you should get 4 different sizes of squares here!)

 

       Can you use this pattern of numbers to predict the answer to a 5 by 5

window without first counting?

       Now count the number of squares in this 5 by 5 window to check your answer.

 

       

       Give yourself a pat on the back if you were correct!

 

BONUS PUZZLE:  Use this pattern of the numbers of each size of square to

predict the total number of squares in a 10 by 10 window without first counting them! (- and who wants to count them?)


         Send your comments, ideas and solutions before Friday Oct. 6 to the email below,

and in the subject line be sure to put  < MM > :  parksjm@potsdam.edu

 Visit us here online at   http://www2.potsdam.edu/parksjm/MM.htm 

to see the results every Friday.

         See you next time on MATH MINUTE!  (theme music fades out here).