This document provides guidance for a multi-lesson unit on avalanches. Lesson 1 involves watching videos on avalanches and creating a mind map on the definition, types, causes, effects, and safety measures. Lesson 2 focuses on writing a definition and describing the two types of avalanches. Lesson 3 covers the effects of avalanches and analyzing a case study through maps, images and details. Lesson 4 explains methods to reduce avalanche impact such as snow fences, planting trees, building designs, transmitters, education, and early warning systems. The document provides assessment criteria on communication, analysis, map/diagram use, and geographical understanding.