This learning resource focuses on counting backward on a number line, specifically from 5 to -5. It engages students through a warm-up challenge that emphasizes rhythm and the significance of crossing zero. The activity is divided into three steps: the Kinesthetic Trace, where students physically slide a finger or marker along the number line while counting; recording the counted sequence in written form; and a Think-Aloud Prompt, encouraging students to articulate their understanding of how numbers change value as they move left past zero. This approach fosters both numerical literacy and critical thinking about the number line's properties.