Spectrum Enrichment Math helps students develop real-world applications of math curriculum! The lessons, perfect for students in grade 4, strengthen math skills by focusing on fractions, measurements, preparing for algebra, graphs, probability, and more! The challenging, multi-step problems also help extend problem-solving and analytical abilities. It features easy-to-understand directions, is aligned to national and state standards, and also includes a complete answer key. —Today, more than ever, students need to be equipped with the essential skills they need for school achievement and for success on proficiency tests. The Spectrum series has been designed to prepare students with these skills and to enhance student achievement. Developed by experts in the field of education, each title in the Spectrum workbook series offers grade-appropriate instruction and reinforcement in an effective sequence for learning success. Perfect for use at home or in school, and a favorite of parents, homeschoolers, and teachers worldwide, Spectrum is the learning partner students need for complete achievement.