Author | Lightnews

Stephanie Simoes @critikid.bsky.social · 17h

We cannot easily determine what's best to do here because Monte's intentions are suspicious - it seems like he would be more likely to offer the money to switch if you've already picked the keys.

Here was Steve's answer, which assumed that Monte opens an empty box no matter what.

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Stephanie Simoes @critikid.bsky.social · 17h

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.

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Stephanie Simoes @critikid.bsky.social · 4d

I have no idea how to solve it with a diagram! I used Bayes theorem

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Stephanie Simoes @critikid.bsky.social · 4d

If a contestant's initially chosen door has the car, there's a 75% chance the host will open a door. If their initially chosen car has a goat, there is a 25% chance.

Your turn to play! You pick a door, and then the host opens a door revealing a goat. Should you switch or stay?

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Stephanie Simoes @critikid.bsky.social · 4d

In this version, after a contestant picks a door, the host *sometimes* opens another one to show a goat and gives the contestant the option to switch their choice. (As usual the host never picks a door with a car.)

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Stephanie Simoes @critikid.bsky.social · 4d

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.

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Stephanie Simoes @critikid.bsky.social · 4d

1. Monty never opens a door with a car.

2. Monty always opens a door.

One might argue that the former is a fair assumption, but the latter is not even how the game show worked.

Would she have received so much pushback if she had clarified that the host *always* opens a door to reveal a goat?

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Stephanie Simoes @critikid.bsky.social · 4d

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:

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Stephanie Simoes @critikid.bsky.social · 5d

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

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Stephanie Simoes @critikid.bsky.social · 6d

Thanks for sharing!

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Stephanie Simoes @critikid.bsky.social · 6d

Topics covered are selection bias, regression to the mean, correlation vs. causation, the clustering illusion, adaptive bias, the gambler's fallacy, the base rate fallacy, the survivorship bias, and Simpson's paradox. Recommended for ages 12 and up.

critikid.com/courses/stat...

A Statistical Odyssey - Critikid

An interactive space adventure teaching kids ages 12 and up about common errors in data analysis.

critikid.com

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Stephanie Simoes @critikid.bsky.social · 6d

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. 👇

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Stephanie Simoes @critikid.bsky.social · 7d

After each post, there’s a short explanation reel that breaks down why the content is misleading and how to identify similar posts in the future.
critikid.com/courses/soci...

Social Media Simulator - Critikid

A mock social media feed for children to practice spotting misinformation and manipulation in a controlled setting.

critikid.com

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Stephanie Simoes @critikid.bsky.social · 7d

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.

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Stephanie Simoes @critikid.bsky.social · 7d

Can you tell me what kinds of examples you are looking for? I teach critical thinking to kids so I'm regularly coming up with light and silly examples for logical fallacies and similar topics.

Stephanie Simoes @critikid.bsky.social · 8d

Studying logical fallacies doesn't just reveal others' mistakes; it also helps us catch our own. Critikid's Fallacy Detectors teaches kids ages 8-12 how to spot logical fallacies through an animated science-fiction adventure.
critikid.com/courses/fall...

Fallacy Detectors - Critikid

A self-paced, interactive, video-based course teaching kids ages 8 to 12 how to spot and respond to logical fallacies.

critikid.com

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Stephanie Simoes @critikid.bsky.social · 8d

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)

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Stephanie Simoes @critikid.bsky.social · 9d

In the long run, when young children learn EQ skills early in life they find the skills easy to use and can manage their emotions in a smart way all throughout their adolescence and adulthood. It is a priceless gift to give to a child.
critikid.com/courses/emot...

Emotional Intelligence - Critikid

A self-paced, interactive emotional intelligence course teaching young children to identify and manage their feelings through videos and activities.

critikid.com

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Stephanie Simoes @critikid.bsky.social · 9d

When they get angry they can calm down. When they feel sad they can do something about it. And when they see strong emotions in others they can recognize what they are and help. 3/

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Stephanie Simoes @critikid.bsky.social · 9d

For young children, emotions can be so confusing, and simply learning what they are called and what can be done to calm down is a big step forward for a little kid. Children who learn the skills for Emotional Intelligence can feel like they have a brand new superpower. 2/

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Stephanie Simoes @critikid.bsky.social · 9d

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/

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Stephanie Simoes @critikid.bsky.social · 10d

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...

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

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Stephanie Simoes @critikid.bsky.social · 11d

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

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

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Stephanie Simoes @critikid.bsky.social · 11d

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

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

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Stephanie Simoes @critikid.bsky.social · 12d

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...

AI and Critical Thinking

Unpack the relationship between AI and critical thinking. Understand cognitive offloading and how it influences student skills.

ultimateradioshow.com

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