CN02 OA2: Identify, describe and classify characteristics of invertebrate animals, such as insects, arachnids and crustaceans, among others, and compare them with vertebrate animals. 

This worksheet is a good chance to begin with guided investigation. The idea is for students to research about crustaceans and complete the graphic organizer with the information they find. They don't necessarily need to research in books or in the internet, but they may also use worksheets, videos and Power Points from their 
Science lessons or their Science notebook to look for the information. It depends on the kind of activity the teacher wants to use it for.