From the early human-powered submarines of the American Civil War to the U-boats of both world wars and the modern nuclear-powered missile platforms of the Cold War, twelve dioramic scenes… More →

This exciting new book helps budding mathematicians discover how to use subtraction. Come along with a museum curator as he prepares a butterfly exhibit. Concepts of taking away, comparing,… More →

Friends share their strategies for figuring out how many objects remain as some are taken away. More →

Early readers will be introduced to subways through simple text and vibrant images to aid comprehension. Learn all about different ways to get around. Features include audio, educational… More →

Suicide is the third-leading cause of death for people ages 15 to 24. It is important to understand the forces that can lead to suicide and to know how to help someone at risk. Suicide is a… More →

Millions of Jewish people all over the world celebrate this autumn festival five days after Yom Kippur. The holiday usually occurs in September or October. Jewish people take time to remember More →

Using real world examples, Fun with Math: Adding helps early learners understand this often challenging math concept. Colorful photographs, simple sentences, and relevant sight words make… More →

Early readers are introduced to the summer season. Simple sentences and bright pictures feature summertime activities. More →

Welcome summer! Learn what animals do during the hot weather of summer. Downloadable Teacher's Notes. More →

Complete Collection of PreK-2nd grade Bronze Level Haitian-Creole backpacks. Prevent the "summer slide" and keep minds active with Crabtree's Summer Backpacks. Each Bronze Level… More →