Input / Output machines always have a way of sneaking into the high stakes tests like the DSTEP. But, as we all know, that is the least of the reasons we should use them. They provide practice in flexible thinking - and are an effective primer for more difficult challenges like the game of 24.
Our Pre-K through second grade students already have access to a very nice input/output machine in their Building Blocks software. But there isn't much for our older students - the same ones who will likely see some of these questions on their standardized tests.
Fortunately, you can find a whole set of more advanced Input/Output Machine activities over at the Mathwire. This activity makes another fine addition to a workshop or menu.
I'd like to challenge you to send me your own set of cards! Let's see what you can come up with! Here's one I made with third grade in mind: Guess My Rule Grade 3