Plant or animal? As part of the Houghton Mifflin Harcourt thematic unit Our Earth, learners engage in activities and exercises that provide them with extra support to master the concepts in the unit.

By using the Internet, hands-on activities, video, and cooperative learning, pupils look into the conditions in which light casts shadows on objects. The lesson includes fabulous hands-on activities, art projects, worksheets, and reource...

Fifth graders identify all parts of an egg, and explore their importance to the life cycle of a chicken. Learners compare all sorts of birds and place them in categories based on what they look like. This five-day lesson effectively...