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.

How does weather play a role in the lives of land and sea creatures? Find out with a instructional activity focused on habitats and the ways animals from different homes are connected. Here, learners explore how the life of a...

Denali National Park and the rain forests of Brazil are the settings for a series of lessons on animal encounters with grizzly bears and golden lion tamarins. The 32-page packet includes scripted lesson plans, activity suggestions, and...

Science, social studies, language arts, and art classes work together with administrators to produce a permanent, ceramic tile wall mural to install at their school. 

Sometimes conservationists use specific plants to prevent erosion or fight invasive species. A 50-slide presentation covers both nonvascular and vascular plants. It discusses the plants, their stages and life cycles, reproduction, uses,...