To recover more worms from the compost, spread it thinly on a tarp in sunlight, leaving a few small mounds. The worms will gather in mounds as the material dries. Be careful, because the heat and rapid drying can kill them. Another method is to sift the compost gently over a fine-mesh wire screen and save the worms that don't go through it. Wash your hands thoroughly after you have handled fresh compost.
Students come to front and model steps to build worm composter in correct sequence.
Teacher supervises through cooperative grouping, with four to five students per group. Students build composting bin with materials provided. Students draw and label worm and compost container and also write one or two sentences about how composting is beneficial. Teacher will review objectives and process of building and maintaining a worm composter. Students will discuss the process required to worm compost and the benefits of worm composting.