After our warm up I took up their homework (coming up with another mnemonic for PEMDAS) and showed them a few more examples, giving them one problem for homework (listed as Ex #3 from the board).
So the lie. :) PEMDAS stands for Parenthesis, Exponents, Multiply, Divide, Add, and Subtract, right? And you do these operations in this order... right?
Well, kind of.
OOO (Order of Operations) should look like this:
P
E
M/D (whichever comes first, left to right)
A/S (whichever comes first, left to right)
So I had to clear that up today. :) I like them to grasp PEMDAS before I trip them up a bit. I call it a mind-blowing experience... and confessed that I'll be blowing their minds many, many times this year!
So only one problem for homework! And if they are wondering or you are wanting to see how they do? The answer to the homework problem is 17. ;)
