Printable metric system charts for use with children are available on TeacherVision.com and MathWorksheets4Kids.com. Conversion charts that help calculate metric measurements from U.S. customary measurements are available at Math-Salamanders.com.
Parents or teachers who are looking for a hands-on method of teaching metric conversion can consider a lesson involving cooking. NourishInteractive.com features a colorful chart that displays both U.S. measurements converted into metric and metric units converted into U.S. standard measurements. Used in conjunction with recipes, these charts help children convert measurements in order to follow the recipe. Another idea is to use metric conversion charts to measure lengths and weights of various objects.