I'm so impressed with my little ones today! I have been a bit concerned that our kindergarteners have to add & subtract within 5 fluently under the new Common Core Curriculum standards. That is a big jump from the TN standard in which they just have to understand the CONCEPT of adding & subtracting. I saw this idea at the TN Kindergarten conference back in November so I decided to give it a try. Students were partnered up and given 5 snap/unifix cubes. Player 1 held the cube train behind their back & Player 2 says "Snap!" Player 1 breaks the cube train (behing their back) and shows 1 part of the broken cube train to Player 2. Player 2 then has to figure out how many cubes are still behind Player 1's back. They were doing so good that I then had them write the subtraction sentences that they were making. (5-1=4). Even the little struggling learner that I was playing with was quickly memorizing the number facts. I'm thinking that if we continue playing this game my little ones will be subtracting fluently before too much longer! Go ahead, you know you want to try it!