## Thursday, August 22, 2013

### Comparing Expressions

Most of my algebra kiddos are pretty good at evaluating expressions.  So, the lesson on it in the textbook should be a review.  To review, I wanted to do a quick game that wouldn't take too long and would be a good way for me to do a quick check in as to who remembered from the summer and who didn't.  The text does a lot with comparing expressions after evaluated.  I like this because it reviews two skills at once and it causes a moment of pause for most students.  They just can't whip through to the answer.

The game that I developed to review is pretty simple.  Students roll a number cube at the beginning of each round to determine the value of the variables in each expression.  Each partner draws a card with an expression on it, evaluates it, and then compares the values of the two expressions.  Finally the students write the expressions, not the evaluation, as an inequality.  I did this to match the book a little bit and to get them to stay abstract with their comparison.  We'll see how it goes when they play it for the first time.  Maybe I'll change the rules midway.

Here is the game if you would like to have it.