Editor in Chief
by The Critical Thinking Co. (website )
A grammar mechanics supplement where students identify and correct errors in passages to develop editing skills.
Best Fit For
Students who have a basic grasp of grammar rules but struggle to apply them to their own writing, and families looking for effective standardized test prep.
Not Recommended For
Students who need explicit, step-by-step grammar instruction or those who are easily frustrated by 'find the error' puzzles without clear teaching modules.
What Reviewers Say
Reviewers consistently describe Editor in Chief as an excellent 'detective-style' supplement that bridges the gap between memorizing grammar rules and applying them to actual writing. Cathy Duffy highlights its effectiveness in reinforcing punctuation, spelling, and usage through active identification of errors. While highly praised for standardized test preparation and improving proofreading skills, a common critique found in forums like Well-Trained Mind is that it lacks direct instruction. Parents note that if a student doesn't already know the rules, they may find the exercises frustrating rather than educational. Most families find it works best as a 10-15 minute daily add-on to a more comprehensive language arts program, offering a practical way to ensure students can spot mistakes in their own work.
How It Works
A typical session involves the student opening their workbook to a short reading passage, such as a mock news article, letter, or advertisement. The child acts as an editor, searching the text to find a specific number of errors in grammar, punctuation, and spelling as indicated at the top of the lesson. After the child marks the corrections using standard editing marks or simple circling, the parent reviews the work using the detailed answer key provided in the back of the book. This process usually takes 10 to 20 minutes and is typically done two or three times a week as a supplement to a primary language arts curriculum. Because the answer key explains the 'why' behind each correction, the parent can use it to teach mini-lessons on the spot.
Switching to This?
The Critical Thinking Co. does not offer a formal diagnostic placement test, but they provide extensive sample pages on their website that parents should review to gauge the appropriate difficulty. A common community rule of thumb is to follow the grade level recommendations on the cover, though many families start one level lower if the student has not had significant experience with formal proofreading. Since the lessons are self-contained and do not build strictly on one another, families can easily start this curriculum mid-year or even over the summer for extra practice. If you are switching from a program that focuses on memorizing rules out of context, expect your child to need extra help during the first few weeks as they learn to spot errors in a 'natural' writing environment. There are no external standardized tests required for placement, as the levels generally align with standard US grade-level expectations for mechanics.
Curriculum Details
- Price
- $21 - $89
- Grades
- 2 - 12
- Available As
- Print Digital Workbook Software
- Coverage
- Single subject
- Pacing
- Flexible
- Parent Time
- 5-15 min/day
- Parent Involvement
- Minimal
- Student Independence
- Semi-independent
- Academic Level
- Above grade level
- Worldview
- Neutral
- Engaging for Reluctant Learners
- Yes
Individual workbooks or eBooks range from $21.99 to $23.99. Bundles or software versions may cost more.
Reviews We Consulted
Recommends the program as an effective way to "test" knowledge for students with a natural eye for detail, but warns it is not appropriate for students who do not already have a strong grasp of grammar concepts.
"In editing, the student has to find the mistake and figure out why it is wrong in order to correct it. I would NOT recommend this product for a student that did not already have a good understanding of the concepts."
Provides a starkly critical perspective, describing the curriculum as tedious and unengaging for students.
"We've done some Editor in Chief, don't really love it. Ok, it's torturous drudgery."
Appreciates how the lessons isolate specific grammar concepts to avoid overwhelming the student, turning proofreading into an enjoyable, puzzle-like activity.
"I like the way that Editor in Chief divides up the errors so that the student is only focusing on one particular grammar concept at a time."
Considers the series a "top pick" for reinforcement and recommends it as a supplemental resource to provide variety and practical application to traditional grammar programs.
"To add variety, you might supplement with Grammar Songs, Editor in Chief workbooks (from The Critical Thinking Co.), or other resources."
Updated: March 2026
How This Compares
Compared to Fix It! Grammar by IEW, Editor in Chief uses stand-alone non-fiction passages rather than a year-long serial story, making it a better fit for students who find a continuous narrative distracting. When weighed against Evan-Moor's Daily Paragraph Editing, Editor in Chief is generally considered more rigorous and logic-based because it requires students to identify errors across a whole passage without being told exactly which line the error is on. Parents choosing between this and a traditional program like G.U.M. (Grammar, Usage, and Mechanics) should note that Editor in Chief lacks direct instruction; it is a tool for practicing known rules rather than a primary teacher. Against a program like Analytical Grammar, which uses sentence diagramming to show how language fits together, Editor in Chief focuses strictly on the 'find and fix' skills needed for standardized testing and real-world editing. Finally, unlike Kumon's writing workbooks which focus on sentence construction, Editor in Chief specifically targets the analytical side of language, forcing students to look for subtle mistakes in usage and style that other programs might overlook.
Getting Started
Try It Free
Click the "View Sample Pages" button on the product page to preview internal activities and editing puzzles.
Find Your Level
Identifies the target grade range and level-specific readiness for the second book in the series.
See What It Looks Like
Access the Table of Contents to review the specific grammar, punctuation, and usage skills covered in this volume.
Explains the publisher's policy regarding photocopying pages for use within a single home or classroom.
Purchase
Official shop for physical and eBook editions; direct purchases are covered by a 60-day money-back guarantee.
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