The document describes the Teaching Excellence Alliance (TEA) Sandpit approach for facilitating collaborative problem solving on issues related to teaching and learning. The Sandpit brings together teams for a one-day intensive session to identify quick wins and long-term solutions on a specific design challenge. It follows 9 stages from identifying the challenge to evaluation. Sandpits have led to tangible action plans and embedded the approach in quality assurance processes across 15 universities. Feedback indicates the format is effective and collaborative.