This document provides an overview of Understanding by Design (UbD) Stage 3, which focuses on planning effective learning activities. It discusses the WHERETO framework for designing learning activities that acquire, make meaning of, and transfer knowledge and skills. Learning activities should build background knowledge, connect inside and outside the classroom, and incorporate opportunities for transfer. Reflection and revision are also important components of Stage 3. Technology can support learning activities through tools that facilitate exploration, collaboration, and publishing student work.