This website has many ways to teach the parts of a sentence. There are also worksheets that students can do as a class to have a better understanding of the parts of a sentence. There are also many topics in the language arts that I can use to teach with.
Here are three of my favorite tips from 10 Tips for Efficient Essay Grading: Require proof that the paper has been edited/revised. Set a timer so that you don't spend too much time on each paper. Create a key for common errors to cut down on the