This is a complete 24 page unit on the Metric System I use with my Fifth Graders. It is designed to be a stand alone unit of the Metric System, or a supplement to your curriculum. Lesson plans, explanations, and worksheets are included. It covers the Common Core Standards Measurement and Data 5.A.1, and Numbers and Operations in Base Ten 5.A. This would be a great Metric Unit for Science as well.