Prepare students to understand common grammar and punctuation symbols that English teacher utilize as they grade essays! This packet provides a simple list of those markings along with explanations that decode them. But that's not all! A hands-on worksheet and answer key are included that will help students to review and assess their knowledge of these symbols as well as that of important concepts such as misplaced modifiers, redundancy, tense shifts, subject-verb agreement, fragments, capitalization errors, etc. These worksheets are a must-have for those who want to reinforce aspects of writing.