Best Critical Thinking Workbooks for High School (2026)
Workbooks and guides for high school readers compared by fit, contents and listed reading age or grade level, from forensic cases to general guides.

At a glance
Top picks
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When a high school student needs sharper reasoning for essays and everyday arguments, the best critical thinking workbooks for high school turn practice into a habit. This list compares workbooks and guides by fit, contents, value and listed level.
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Quick picks
Best Overall Basics of Critical Thinking by Baker: Defines critical thinking across 152 pages for grades 4 to 9 Check price on Amazon
Best Forensic Cases Forensic Investigations by Cameron: 10 forensic cases with labs and an answer key Check price on Amazon
Best General Guide Critical Thinking Guide by Neuronswaves: Logic, problem solving and communication in 154 pages Check price on Amazon
Best Grade 6 Activities Skill Sharpeners Grade 6 by Evan-Moor: 100+ activities with a skill named on each page Check price on Amazon
Best Grade 4 Activities Skill Sharpeners Grade 4 by Evan-Moor: 100+ activities across 4 school subjects Check price on Amazon
The picks

Basics of Critical Thinking by Baker
A 152-page workbook for grades 4 to 9 that defines critical thinking through short activities.
Pros
- Defines critical thinking before teaching it
- 152 pages of short activities across subjects
- Covers evidence, argument forms and propaganda
Cons
- Reading age 9 to 15 years sits below high school
- 2015 date predates the 2023 guide here
- No answer key is stated

Forensic Investigations by Cameron
An 80-page middle school workbook building critical thinking through 10 forensic cases.
Pros
- 10 cases with analysis labs
- Answer key included for checking work
- Covers DNA, fingerprints and handwriting
Cons
- Ages 11 to 14 and grades 6 to 8 sit below high school
- 2008 date is older than the other books here
- 80 pages, fewer than the 144-page workbooks here

Critical Thinking Guide by Neuronswaves
A 154-page guide to critical thinking, logic and problem solving, with exercises and frameworks.
Pros
- Four parts cover thinking, logic, solving and communication
- Exercises, decision trees and fallacy detection
- 2023 date, newer than the other books here
Cons
- No reading age or grade level is stated
- No answer key is stated
- Listed as a guide, not a workbook

Skill Sharpeners Grade 6 by Evan-Moor
A 144-page grade 6 workbook of 100+ activities across 4 school subjects.
Pros
- 100+ activities across 4 school subjects
- Each page names the skill practiced
- Answer key and teaching guide included
Cons
- Grade 6 and ages 11 to 12 sit below high school
- Activities, not a full critical thinking course
- Teaching guide is separate

Skill Sharpeners Grade 4 by Evan-Moor
A 144-page grade 4 workbook of 100+ activities across 4 school subjects.
Pros
- 100+ activities across 4 school subjects
- Each page names the skill practiced
- Answer key and teaching guide included
Cons
- Grade 4 and ages 9 to 10 sit below high school
- Activities, not a full critical thinking course
- Teaching guide is separate
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More picks to compare
Practical Thinking by Connors-NelsonFor grades 9 to 12 students studying reasoning, logic and arguments.Check on Amazon
Becoming a Critical Thinker by BogartFor teens and preteens learning to spot bias and misinformation.Check on Amazon
James Madison Course by O'MearaFor grades 8 to 12 students, through crime-solving scenarios.Check on Amazon
Compare the picks
| Book | Shelf Score | Pages | Reading age or grade | Published | Amazon |
|---|---|---|---|---|---|
| Basics of Critical Thinking by Baker | 9.5/10 | 152 | 9 to 15, grades 4 to 9 | 2015 | View on Amazon |
| Forensic Investigations by Cameron | 9.4/10 | 80 | 11 to 14, grades 6 to 8 | 2008 | View on Amazon |
| Critical Thinking Guide by Neuronswaves | 9.4/10 | 154 | Not stated | 2023 | View on Amazon |
| Skill Sharpeners Grade 6 by Evan-Moor | 9.4/10 | 144 | 11 to 12, grade 6 | 2017 | View on Amazon |
| Skill Sharpeners Grade 4 by Evan-Moor | 9.3/10 | 144 | 9 to 10, grade 4 | 2017 | View on Amazon |
Book details as published on each listing, collected 25 October 2026.
How we scored them
The Shelf Score weighs fit for the reader, contents and edition, value, and the listed reading age or level where a level is given. Four of the picks list a reading age or grade level, and the guide lists none. How we pick explains the weights.
| Book | Shelf Score | Fit /35 | Contents /25 | Value /25 | Age/level /10 |
|---|---|---|---|---|---|
| Basics of Critical Thinking by Baker | 9.5 | 26 | 20 | 20 | 5 |
| Forensic Investigations by Cameron | 9.4 | 23 | 19 | 19 | 4 |
| Critical Thinking Guide by Neuronswaves | 9.4 | 27 | 20 | 20 | 0 |
| Skill Sharpeners Grade 6 by Evan-Moor | 9.4 | 19 | 20 | 20 | 3 |
| Skill Sharpeners Grade 4 by Evan-Moor | 9.3 | 16 | 20 | 20 | 3 |
Scores run from 9.2 to 9.8: each book’s point total is placed on that range, so more points always means a higher score. Reading age or level counts on a list where at least one listing gives one, and a book whose listing gives none then scores zero on it. Where no listing gives one, the score is taken over the other 85 points. Books carry no warranty, so warranty is not scored.
How to choose the best critical thinking workbooks for high school
Match the level to the reader
The Basics workbook covers grades 4 to 9, while the Forensic workbook lists ages 11 to 14 and grades 6 to 8. Both Skill Sharpeners workbooks sit below high school, and the Neuronswaves guide lists no level. Younger readers can also look at workbooks for middle school.
Workbook or guide
Workbooks give activities with answers: the Forensic workbook and both Skill Sharpeners workbooks state an answer key is included. The Neuronswaves guide teaches frameworks instead, with no answer key stated. More workbooks for high school students cover other subjects.
Edition and answer key
Dates here run from 2008 for the Forensic workbook to 2023 for the Neuronswaves guide. Check the edition on the listing.
Before you buy
- Check the publication date and edition on the listing.
- Check whether an answer key is included or sold separately.
- Check the reading age and grade level against the reader.
Frequently Asked Questions
Which workbook suits a high school student best?
The Basics workbook covers grades 4 to 9, so it suits a reader starting high school.
Do these workbooks include an answer key?
The Forensic workbook and both Skill Sharpeners workbooks state an answer key is included; the others state none.
Which book runs longest?
The Neuronswaves guide runs 154 pages, longer than the 152-page Basics workbook.
Related lists
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