A great way for students to practice expressions through playing a game that involves "sending" and "receiving" algebra expressions. Students have two game boards and a set of game rules. Sender writes and sends an expression to the receiver. Receiver needs to write it down correctly and then repeat it to the sender to get a point. Vocabulary and concept understanding builds the longer they play it! Great way to build understanding of complex math expressions - only limited by the level of underdstanding of your students!