This document discusses the selection and use of raw materials in the classroom. It begins by explaining that teachers often need to produce their own materials to suit their lessons when commercially available options are too expensive or unavailable. It then provides examples of raw materials like paper, plastic, soil and feathers that can be used. The document outlines various ways raw materials can be utilized, such as for posters, puppets, storybooks and crafts. Both advantages like contextualization and individualization, and disadvantages like lack of organization and quality issues are presented. Specific classroom tools made from raw materials like boards, displays, charts and puppets are also defined.