This hands-on sorting activity is perfect for reviewing the six simple machines: levels, inclined planes, screws, wedges, wheels, and pulleys. Students will review definitions, types, parts and examples of each of the different simple machines. These sorting mats can be used to review the information and/or as an end of unit assessment. An answer key is provided that allows children to check their own work when they are finished. Suggestions are given to start with smaller chunks of informat