In this free math lesson for grades K-2, students test water absorption to model runoff in urban areas, then imagine being a landscape architect and design a rain garden to mitigate flooding. Access the full lesson plan, slideshow, student documents, and teacher answer key below .★ ACCESS FREE LESSON PLAN HERE ★★ WHAT’S INCLUDED ★Teacher SlideshowStudent DocumentsExperiment GuideReading: So Where Does Rainwater Go?Rain Gardens Up CloseShape Cut Outs, Math, and WritingVocabulary Cards★ PRIMARY S