Analogies are often used to clarify new concepts by relating the new concept to well-known concepts. One such analogy for electric circuits is the water-flow analogy.
For your original post, research potential analogies for the series circuit, and select an example to share with the class (or create one of your own!). In your description, identify what characteristics are analogous (or comparable) to the series circuit. Specifically, you should be able to note elements that represent voltage, current, and resistance as they apply to a series circuit.