I like to incorporate informational text in as many units as possible. Studying animals is an easy way to make this happen because of the plentiful amount of resources available. After reading and studying the animals, each student gets to dictate a fact that impressed them about the animal. I found themed sticky notes at our local dollar store to add a special touch to the fact collection.
A cave of bat facts displayed on bat themed sticky notes.
A web of spider facts displayed on spider themed post it notes.