Biology Junction
Unsegmented Worms
While you definitely don't want to have tapeworms, they are an interesting species to say the least! They are just one of the species of Platyhelminthes that are part of the lesson presentation. The lesson begins with an overview of the...
Kentucky School for the Deaf
Levels of Organization within an Ecosystem
From tiny organisms to entire biomes, young scientists examine the interdependent relationships tying all living and non-living things together with this collection of ecology resources.
New South Wales Department of Education
Invertebrates
Of all invertebrates, insects by far are the most numerous. Scholars discuss invertebrates and then use a key to classify them. They see different examples and must describe features of each organism based upon the key. 
Curated OER
Worm Interviews
Students identify types of worms. In this organisms lesson plan, students are shown slides of the different types of worms and take notes on each worm. Students answer questions about each worm.