As we are trying to increase our knowledge of basic addition and subtraction facts, we have been using our Active Expressions. These hand held devices can be used to solve basic addition and subtraction problems. Mrs. Short sets it up and generates 100 problems at a time. When we are ready, we turn on our devices. An addition or subtraction problem shows up on our screen. We enter and send our answer and then it goes to the next problem. When we are done, Mrs. Short can see our results, how many and which ones were correct/incorrect and how long it took us to answer the problems. Here are a few pictures of us using our Active Expressions.