5. Create Performance Levels

Once teachers have determined the broad levels they would like students to demonstrate mastery of, the teacher will need to decide what type of scores they will assign based on each level of mastery. Most ratings scales include between three and five levels. Some teachers use a combination of numbers and descriptive labels like "(4) Exceptional, (3) Satisfactory, etc." while other teachers simply assign numbers, percentages, letter grades or any combination of the three for each level. You can arrange them from highest to lowest or lowest to highest as long as your levels are organized and easy to understand.  

Another approach is to simply colour code the whole or parts of performance descriptors with such as green (fully achieved), orange (partially achieved) and red *not achieved).  This method provides a a clear visual assessment of progress, identifies areas for improvement and the colour code can easily be aligned to numerical or percentage values on completion of the project.