Understanding how to group objects into sets is a key building block in math. Each book in the I Can Make Sets series helps early readers explore different number combinations that make up… More →

In this simple explanation of matter, children explore their world as they touch, taste, and change objects that surround them. More →

This book introduces early readers to subtraction by zero. Simple text and vibrant images help engage children and grow a love of reading! This book also includes a page for caregivers and… More →

This book introduces early readers to subtraction by two. Simple text and vibrant images help engage children and grow a love of reading! This book also includes a page for caregivers and… More →

Learning subtraction is a snap! The I Can Take Away series uses engaging images to help early readers figure out how many objects remain as some are taken away. With full-page photographs… More →

This book introduces early readers to subtraction by three. Simple text and vibrant images help engage children and grow a love of reading! This book also includes a page for caregivers and… More →

This book introduces early readers to subtraction by one. Simple text and vibrant images help engage children and grow a love of reading! This book also includes a page for caregivers and… More →

Welcome to Puerto Rico! Let Angel show you around where he lives. Learn about Puerto Rico's flag, animal, and flower. Find out his favorite activities too! Downloadable Teacher Notes available. More →

The island of Puerto Rico or "rich port" has long been known as a center of trade and commerce in the Caribbean. It is also a small island with great physical and social diversity. Puerto… More →

From being a stopping point for pirates and privateers, to a Spanish colony and later an American colony, the island of Puerto Rico has been a strategic piece of real estate for hundreds of… More →