Come jam out in a powerful experience of how concrete, representational, and abstract (CRA) models can serve as interconnected tools for unpacking strategies for subtraction with regrouping. Rather than viewing CRA as a linear progression, we will linger in the connections between these contexts, uncovering how each can highlight or obscure parts of the underlying mathematics. We will use our experience to explore how BTC moves can support students to prioritize connection over progression and deepen conceptual understanding.
