In this fabulous unit, students learn everything they need to know about sound — and more. This highly practical and simple-to-use unit is broken into three parts. First, students participate in meaningful activities associated with the core theme of each lesson. Next, a series of optional lessons provides extra activities that teachers may wish to use for homework assignments, review or enrichment. Finally, a series of student notes provides the information base for the unit and makes expensive textbooks completely unnecessary. This Life Science lesson provides a teacher and student section with a variety of reading passages, activities, crossword, word search, pictograms and answer key to create a well-rounded lesson plan.

Spectrum(R) Grade Specific for Grade 4 includes focused practice for reading, language arts, and math mastery. Skills include grammar and usage, parts of speech and sentence types, vocabulary acquisition and usage, multiplying and dividing, fractions and decimals, measurement conversions, classifying geometric figures, and preparing for algebra. --Each Spectrum(R) Grade Specific workbook includes a writer's guide and step-by-step instructions, helping children with planning, drafting, revising, proofreading, and sharing writing. Children in grades 1 to 6 will find lessons and exercises that help them progress through increasingly difficult subject matter. Aligned to current state standards, Spectrum is your childÕs path to language arts and math mastery.