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# PROBLEM SOLVING: Turkey Squares (Latin Squares)

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PROBLEM SOLVING: Turkey Squares (Latin Squares)

Use Turkey Squares to teach your students deductive reasoning while disguising it as lots of fun. Turkey Squares are square arrays of n x n rows and columns in which n items fill the cells so that no item is used more than once in each row and column. Known as Latin Squares in mathematics, they are used for statistical analysis. If they seem familiar, they should; Sudoku is a 9 x 9 Latin Square.

Begin by demonstrating how a 3 x 3 array works. Cut apart the 6 x 6 colored array of tiles found at the end of this unit. Using 3 each of 3 colors, place them on the 3 x 3 array in standardized form; i.e. both the 1st row and 1st column display the colors in the same order.

Distribute a Turkey Squares 4 x 4 board to each student with 4 tiles each of 4 colors. Ask them to place their tiles on the board without repeating a color in any row or column. Be prepared! One of your students is bound to discover that making diagonal stripes will allow him/her to solve the Turkey Square with ease. Do not let them stop with that realization. For a 3 x 3 array, there are 12 possible solutions. Dare them to find all 12. For a 4 x 4 array, there are 576 permutations!! Now that's a challenge any bright, gifted, and/or talented students should love.

As a teacher who is dedicated to differentiated instruction, I have used Turkey Squares successfully with 1st through 3rd graders. You could also set Turkey Squares up as a math center or sponge activity.

If your students love them as much as mine do, the next logical step is to introduce Sudoku. It's certainly appropriate for 3rd graders. Need help? Look for my power point product, How to Play Sudoku.

Your students may enjoy these editions of Latin Squares as well:
Patriotic Squares
Pumpkin Squares
Reindeer Squares
Monkey Squares

Barb Evans
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