Marsh plants absorb excess nutrients, add oxygen for aquatic life, prevent erosion and help control destruction of floods. Define marsh and discuss its functions. Define metaphor and give examples. Inside are household objects that function like a marsh. Divide class into groups of 4-6 students.
Students work together to decide how their object functions like a marsh.
Allow five minutes for collaboration. One student from each group shares their metaphor with the class. Compare and contrast the functions of a marsh with those of household objects. Brainstorm other objects that function like a marsh. Last updated June 24, 1998.