Stephanie Simoes
@critikid.bsky.social
Founder of Critikid.com, a critical thinking site for kids and teens. Posting about:
- Science, data, and media literacy
- Clear communication
- Logic, puzzles, and paradoxes
- Science, data, and media literacy
- Clear communication
- Logic, puzzles, and paradoxes
8 philosophical conversation-starters (or journaling prompts) for teens:
1. Can two people look at the same evidence, think carefully, and still both be reasonable while disagreeing?
1. Can two people look at the same evidence, think carefully, and still both be reasonable while disagreeing?
November 16, 2025 at 4:10 AM
8 philosophical conversation-starters (or journaling prompts) for teens:
1. Can two people look at the same evidence, think carefully, and still both be reasonable while disagreeing?
1. Can two people look at the same evidence, think carefully, and still both be reasonable while disagreeing?
My plans for Critikid for the rest of the 2025 👇
November 15, 2025 at 4:32 AM
My plans for Critikid for the rest of the 2025 👇
Just set up a Linktree. Check it out if you want to connect with me on other platforms: linktr.ee/critikid
Critikid | Stephanie Simoes | Instagram, Facebook, TikTok | Linktree
Critical thinking content for kids and teens on my website and for all ages on social media.
linktr.ee
November 14, 2025 at 6:52 AM
Just set up a Linktree. Check it out if you want to connect with me on other platforms: linktr.ee/critikid
I'm hoping to make Fallacy Detectors Part 2 before the end of this year, but it's expensive because I need to hire an animator. I'm running a @ko-fi.com campaign to help fund it, but I'm only 17% of the way there. Please contribute if you can: ko-fi.com/critikid
Support Critikid
Support Critikid
ko-fi.com
November 12, 2025 at 7:33 AM
I'm hoping to make Fallacy Detectors Part 2 before the end of this year, but it's expensive because I need to hire an animator. I'm running a @ko-fi.com campaign to help fund it, but I'm only 17% of the way there. Please contribute if you can: ko-fi.com/critikid
A common logical fallacy you almost never hear about is the historian's fallacy.
You commit the historian's fallacy when you judge a past decision as obviously obviously wrong using information that wasn't available at the time. 1/
You commit the historian's fallacy when you judge a past decision as obviously obviously wrong using information that wasn't available at the time. 1/
November 11, 2025 at 2:29 PM
A common logical fallacy you almost never hear about is the historian's fallacy.
You commit the historian's fallacy when you judge a past decision as obviously obviously wrong using information that wasn't available at the time. 1/
You commit the historian's fallacy when you judge a past decision as obviously obviously wrong using information that wasn't available at the time. 1/
Since I've been talking about the problematic vagueness of the Monty Hall problem, here's my attempt to pose the puzzle it in a clearer way.
critikid.com/puzzles/mont...
critikid.com/puzzles/mont...
Monty Hall Problem - Critical Thinking Brainteaser - Critikid
You are on a game show. You have to choose between one of three doors. Behind one of them is a prize; behind the other two, nothing.
critikid.com
November 8, 2025 at 4:11 PM
Since I've been talking about the problematic vagueness of the Monty Hall problem, here's my attempt to pose the puzzle it in a clearer way.
critikid.com/puzzles/mont...
critikid.com/puzzles/mont...
Why are people falling for pseudoscience, rejecting experts, and trusting TikTok over decades of research? In her guest post for Critikid's blog, Chloe Lipton addresses these questions.
critikid.com/scientific-m...
critikid.com/scientific-m...
The Science of Scientific Mistrust - Critikid
Chloe Lipton shares the real reason people are falling for pseudoscience, rejecting experts, and trusting TikTok over decades of research.
critikid.com
November 8, 2025 at 5:06 AM
Why are people falling for pseudoscience, rejecting experts, and trusting TikTok over decades of research? In her guest post for Critikid's blog, Chloe Lipton addresses these questions.
critikid.com/scientific-m...
critikid.com/scientific-m...
This is the original Monty Hall problem, posed by Steve Selvin as a Letter to the Editor in The American Statistician in 1975, 15 years before it was made famous by Marilyn vos Savant's column in Parade Magazine.
November 4, 2025 at 3:35 AM
This is the original Monty Hall problem, posed by Steve Selvin as a Letter to the Editor in The American Statistician in 1975, 15 years before it was made famous by Marilyn vos Savant's column in Parade Magazine.
Here's a variation of the Monty Hall problem:
As usual, you are on a game show i which there are 3 doors: one hides a car, two hide goats. You win if you pick the door with the car.
As usual, you are on a game show i which there are 3 doors: one hides a car, two hide goats. You win if you pick the door with the car.
October 31, 2025 at 4:38 PM
Here's a variation of the Monty Hall problem:
As usual, you are on a game show i which there are 3 doors: one hides a car, two hide goats. You win if you pick the door with the car.
As usual, you are on a game show i which there are 3 doors: one hides a car, two hide goats. You win if you pick the door with the car.
Marilyn vos Savant's framing of the Monty Hall problem was slightly unclear. Although she said the host *knows* what's behind the doors, it doesn't follow from this that he *was guaranteed to* open a door with a goat. Her version requires us to assume two things:
October 31, 2025 at 6:27 AM
Marilyn vos Savant's framing of the Monty Hall problem was slightly unclear. Although she said the host *knows* what's behind the doors, it doesn't follow from this that he *was guaranteed to* open a door with a goat. Her version requires us to assume two things:
Critikid has a range of critical thinking worksheets and lesson plans for grades 2-12. critikid.com/worksheets
Worksheets and Lesson Plans: Critikid - Critikid
Critical thinking worksheets and lesson plans for grades 2 to 12. Teach your kids about logical fallacies, data analysis, symbolic logic, and more.
critikid.com
October 30, 2025 at 4:18 AM
Critikid has a range of critical thinking worksheets and lesson plans for grades 2-12. critikid.com/worksheets
As you explore a spaceship to discover the cause of a mysterious ship-wide memory loss, you will learn how biases can distort our understanding of data. 👇
October 29, 2025 at 6:32 AM
As you explore a spaceship to discover the cause of a mysterious ship-wide memory loss, you will learn how biases can distort our understanding of data. 👇
Critikid's social media simulator features a variety of posts designed to teach kids how to spot common misinformation tactics. These include examples of logical fallacies, fear-mongering, pseudoscience, clickbait, sensationalized headlines, and AI-generated images.
October 28, 2025 at 7:42 AM
Critikid's social media simulator features a variety of posts designed to teach kids how to spot common misinformation tactics. These include examples of logical fallacies, fear-mongering, pseudoscience, clickbait, sensationalized headlines, and AI-generated images.
Logical fallacies are bad arguments or flaws in reasoning. They often come up in conversation and debate. Sometimes people commit logical fallacies intentionally to try to win arguments, but at other times it's accidental. (Continued)
October 27, 2025 at 6:35 AM
Logical fallacies are bad arguments or flaws in reasoning. They often come up in conversation and debate. Sometimes people commit logical fallacies intentionally to try to win arguments, but at other times it's accidental. (Continued)
It is sometimes difficult for adults to remember what it was like when they didn't know the names for their feelings or what to do about them. We forget that it was a skill that we had to learn. 1/
October 26, 2025 at 9:00 AM
It is sometimes difficult for adults to remember what it was like when they didn't know the names for their feelings or what to do about them. We forget that it was a skill that we had to learn. 1/
I wasn't introduced to formal logic until I was 18 in university. In my experience, teens can learn it much earlier, as long as clear language is used and concrete examples are given. I designed a course specifically for 13 to 18-year-olds:
critikid.com/courses/form...
critikid.com/courses/form...
Symbolic Logic for Teens - Critikid
Learn how to make sense of complicated arguments with 14 video lessons and activities. Recommended for ages 13 and up.
critikid.com
October 25, 2025 at 12:33 PM
I wasn't introduced to formal logic until I was 18 in university. In my experience, teens can learn it much earlier, as long as clear language is used and concrete examples are given. I designed a course specifically for 13 to 18-year-olds:
critikid.com/courses/form...
critikid.com/courses/form...
Many adults struggle to admit when they’re wrong. Let's teach children that updating beliefs with new evidence is a strength, not a weakness. Milo’s Mind is a picture book about beliefs, evidence, and intellectual humility. Recommended for ages 6-9.
Critikid.com/milos-mind-redirect
Critikid.com/milos-mind-redirect
Milo’s Mind: Beliefs and Rationality Unite - Critikid
Milo’s mind is full of BELIEFS—but not all of them are true. Luckily, he has a helpful guide: RATIONALITY, a detective who helps him ask questions and search for evidence. In this picture book for kid...
Critikid.com
October 24, 2025 at 5:22 PM
Many adults struggle to admit when they’re wrong. Let's teach children that updating beliefs with new evidence is a strength, not a weakness. Milo’s Mind is a picture book about beliefs, evidence, and intellectual humility. Recommended for ages 6-9.
Critikid.com/milos-mind-redirect
Critikid.com/milos-mind-redirect
I post more often on Facebook (and they've actually started paying for engagement!). I'd be grateful if you followed along there 🙏.
www.facebook.com/critikids
www.facebook.com/critikids
Critikid
Critikid. 3,702 likes · 216 talking about this. 💭 Critical thinking videos and activities
🧩 Logic, puzzles, paradoxes, science, and statistics
👩💻 Content for kids on my website!
www.facebook.com
October 24, 2025 at 12:24 PM
I post more often on Facebook (and they've actually started paying for engagement!). I'd be grateful if you followed along there 🙏.
www.facebook.com/critikids
www.facebook.com/critikids
Should we be worried about AI degrading kids' critical thinking skills? Can we use AI to help kids think more critically? These are some of the questions discussed in my latest podcast with @fundafundaacademy.bsky.social.
ultimateradioshow.com/ai-and-criti...
ultimateradioshow.com/ai-and-criti...
AI and Critical Thinking
Unpack the relationship between AI and critical thinking. Understand cognitive offloading and how it influences student skills.
ultimateradioshow.com
October 23, 2025 at 10:28 AM
Should we be worried about AI degrading kids' critical thinking skills? Can we use AI to help kids think more critically? These are some of the questions discussed in my latest podcast with @fundafundaacademy.bsky.social.
ultimateradioshow.com/ai-and-criti...
ultimateradioshow.com/ai-and-criti...
I see the Two Child Problem is going viral on social media again. I wrote this puzzle to demonstrate why it is unanswerable as typically framed: critikid.com/double-six-p...
Double-Six Puzzle - Critikid
The double-six puzzle demonstrates that, in probability problems, how we come to know information matters.
critikid.com
October 22, 2025 at 12:59 AM
I see the Two Child Problem is going viral on social media again. I wrote this puzzle to demonstrate why it is unanswerable as typically framed: critikid.com/double-six-p...
Don’t confuse the best decision among bad options with a bad decision.
October 16, 2025 at 10:19 PM
Don’t confuse the best decision among bad options with a bad decision.
I'm working on building a list of critical thinking activities for teens that require little to no prep or materials. It's a work-in-progress, but you can see the first activity I came up with here. If you have any ideas, please leave them in the comments!
critikid.com/critical-thi...
critikid.com/critical-thi...
Critical Thinking Activities for Teens - Critikid
Critical thinking activities for teenagers that can be used at home or in the classroom with little to no prep or materials.
critikid.com
October 16, 2025 at 6:27 PM
I'm working on building a list of critical thinking activities for teens that require little to no prep or materials. It's a work-in-progress, but you can see the first activity I came up with here. If you have any ideas, please leave them in the comments!
critikid.com/critical-thi...
critikid.com/critical-thi...
Critikid is now listed on Modulo! Please leave a review if you've used any of Critikid's resources. joinmodulo.com/products/Cri...
Critikid - Critical Thinking for Kids
Critikid.com, founded by educator Stephanie Simoes, offers families practical tools to help kids and teens build critical thinking skills. We provide self-paced, interactive courses on logical fallaci...
joinmodulo.com
October 15, 2025 at 11:21 PM
Critikid is now listed on Modulo! Please leave a review if you've used any of Critikid's resources. joinmodulo.com/products/Cri...
I've added a new page on Critikid about myself. Is there any information you'd like to see that isn't included?
critikid.com/stephanie-si...
critikid.com/stephanie-si...
About Stephanie Simoes - Critikid
Critikid was founded by science teacher and educational video creator Stephanie Simoes.
critikid.com
October 14, 2025 at 1:17 PM
I've added a new page on Critikid about myself. Is there any information you'd like to see that isn't included?
critikid.com/stephanie-si...
critikid.com/stephanie-si...
My latest article for @psychologytoday.com provides a brief, simple introduction to formal logic and deductive arguments:
www.psychologytoday.com/us/blog/crit...
www.psychologytoday.com/us/blog/crit...
How Arguments Go Wrong—and How Bad Arguments Can Go Right
An introduction to the structure of deductive arguments, how to evaluate them, and why a bad argument doesn’t necessarily mean the conclusion is false.
www.psychologytoday.com
October 7, 2025 at 5:56 PM
My latest article for @psychologytoday.com provides a brief, simple introduction to formal logic and deductive arguments:
www.psychologytoday.com/us/blog/crit...
www.psychologytoday.com/us/blog/crit...