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Creating your symbol

① Choose a name 

            example: LEM 


 Create a unique symbol

             unoriginal example:

 Decide on its operation

            boring example:
      multiply the two numbers and add one (a x b +1)

How hard should it be?
Your symbol can be challenging, but AVOID making it unnessarily complicated.
If your symbol operations are hard, use simple numbers in your problems.
If your symbol operations are easy, try using more complicated numbers (large numbers, decimals, fractions, etc.) on your worksheet. 
Do NOT use a number or problem that is too large to fit on a standard calculator screen (ex: 19!).

Can I change what my symbol does later on?
Students can change the algorithm anytime up until they present it to the class.

Does order matter?
Depends on the operation (+ and x = no. - and / = yes).
Be careful when you use a variety of math symbols.
Advanced students:  don't forget about PEMDAS (order of operations)

What operations do you know that you can include in your algorithm?
The basics...
    addition: +
    subtraction: -
    multiplication: x
    division: /
More advanced concepts...
    exponents: "to the power of" or "squared" or "cubed"  5 squared = 25 (5^2 = 25)
    roots: square root of 25 = 5
    factorial:  !      5!=5x4x3x2x1
    modulo: mod      just the remainder of a division problem
    absolute value:  |x|   distance from zero
    grouping symbols: ( ) { } [ ]
    pi (about 3.14)
How can I make sure I don't pick a symbol that already exists?
Here is a pretty long list of math symbols that you want to avoid: