Expository writing is the focus of the language arts lesson presented here. In it, young writers review what expository writing is through a class discussion and teacher demonstration. Then, learners write expository text that describes a woodland forest habitat based on prior knowledge. Pairs of learners work together to write one sentence that uses specific details and clear adjectives that describe one element of the woodland habitat. All of the sentences are put together, which results in a class-generated piece of expository writing. A great teaching idea.