The numberline is a critical tool for developing number sense and reasoning. Clothesline Math takes the traditional numberline to a new level of versatility and understanding while giving teachers additional ways to formatively assess student understanding, engage in meaningful classroom discussions, and provide a visual model for student's to demonstrate their thinking and reasoning to others. Come learn about Clothesline Math and walk away with a new tool for math learning and engagement. Walk away with links to tools for classroom implementation.