STEM design challenges are prompts that encourage learners to build something new for a specific reason or purpose. This worksheet outlines a design process creators can follow as they plan, build, and reflect on their new invention or creation. Use this STEM Design Challenge: Brainstorm and Reflection Sheet with second, third, fourth, and fifth graders to help them hone their creativity and critical thinking skills while providing hands-on experience with the planning and writing process. This worksheet can accompany the STEM Design Challenge Cards, or it can be used alongside a design challenge of your own!