This is a full unit of study on numbers systems aligned to Common Come and Pennsylvania Core grade 6. Inside you'll find guided notes, homework problems, real-world word problems, review questions, quizzes, tests, and a fully worked out teacher's key for everything. Topics include operations with fractions and decimals, word problems, prime factorization, greatest common factor, and least common multiple. This unit contains rigorous problems to keep your high achieving students engaged, but al