Sink or Float is an engaging battleship style game in which students use and apply 100s chart skills in order to sink each other’s ships. It is a great way to help them get familiar with patterns on a hundreds chart and recognize number sequences.
We use this as a center during math workshop during our first Number Sense math unit. After we introduce students to a hundreds chart, we play this game small group at the teacher table. As students become more independent, it becomes a choice for centers, and it is always a favorite!