FREE! Lesson plans that cover: basic operations with whole numbers and decimals, LCM, GCF, and the distributive property. A compilation of all of our links from our other products for these topics, as well as a vocabulary quiz, study guide, and test--all with keys. 6.NS.2, 6.NS.3, 6.NS.4 Approximately fourteen days of ninety minute math periods are needed to teach this unit. This is Unit 1 of 13 that will cover every concept of every standard in the Common Core for sixth grade math.