STC™ Program - Science and Technology Concepts STC BOOKS™ are colorful 64-page readers with research-based science content, giving teachers an ideal way to integrate science instruction during guided, independent, or take-home reading. Teachers use STC™ science curriculum materials to enhance elementary classrooms, increase student test scores, and meet national and state educational standards.

Grades 3-4. Plant Growth and Development takes students into the world of plants and their many uses-not only as food but also as medicine, clothing, and other materials. Students read about how plants are similar, even though they might not look alike. They also learn about scientists who study plants and about the web of life that links plants and animals. Other reading selections show what happens when people take plants away from their natural habitat, and the steps that people are taking to protect rare and endangered plant species.