Sketching can be an effective collaborative design method. It enhances the design process through improved designs, low costs, and better collaboration and communication. Sketching also improves creativity by supporting memory, lateral thinking, modeling, and generation and reinterpretation of ideas through iterative cycles. The document discusses using sketching and an action research method with grounded theory analysis to develop designs for a project. It includes a quote from a mathematician who realized a new solution by sketching an idea that would not have occurred through only algorithmic thinking.