Bøger af Sarah Machajewski

Few objects can catch the fancy and capture the imagination quite as much as diamonds. Since their first discovery, these precious gems have inspired passion, evoked jealousy, and spurred conflict. Readers will study how diamonds are formed, extracted, and processed. Stunning sparkling photographs of the glittering gemstones add dimension to the book's comprehensive content. The book's relevant subject matter makes it a must-have for growing science enthusiasts studying elementary Earth science topics.

Marine biology is both essential and inspirational to human life. The bodies of mollusks in particular allow them to live aboveground, underwater, or both, depending on the species. Readers will learn about the unique contribution oysters, squid, and slugs, all of which are different classes of mollusks, make to their habitats. Their diets, their vulnerabilities, what they leave behind, and what threatens them take shape on pages that depict what mollusks are through both stunning photography and highly organized prose.

Understanding the principles of base ten is essential to understanding numbers and operations. Students will become familiar with the concept of place value through engaging narratives and real-life situations. Students will then be challenged to use place value in the context of algebraic operations, demonstrating the knowledge theyve gained from reading. Eye-catching visuals help walk readers through the math problems, while age-appropriate language encourages learning. Readers will gain a deep understanding of adding and subtracting three-digit numbers as they learn about animal migrations around the world. This volume meets CCSS Math Standard 2.NBT.B.7.