This document outlines strategies for building students' background knowledge, which is important for comprehension. It discusses using group activities like the 1-2-3 method, brainstorming ball toss, and photo galleries to activate and expand what students already know on a topic. It also recommends guided internet searches where students sequentially find information, view memes, watch videos, and read articles about a subject. The document provides examples and tips for implementing these techniques to develop students' contextual knowledge and scaffold their learning.