Use these charts to help your students remember standard and metric units of measurements. Two charts are included: sorting by capacity, weight, length and temperature and sorting by U.S. Customary and Metric units. There are three worksheets for each chart. The first worksheet has no lines. The second worksheet has lines for guidance while writing and the last worksheet has the exact amount of lines needed to complete the chart. This makes it easy for the teacher to use the same materials and differentiate for those students who need modifications.