Strengthen your child's mind

Sharpen your child's critical thinking and communication skills with videos and activities about how to spot and respond to logical fallacies.

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What People Say

I learned about different types of fallacies which help me to identify them when having a conversation. I've been able to identify LOADS of circular reasoning!

— Adèle, 9

Critikid is an effective and helpful way for children to learn critical thinking, using smart teaching methods and thoroughly explaining topics. Critikid is an all-around great tool for children and teens who want to develop their analytical skills.

— Ben, 15

She [my daughter] followed the entire Fallacy Detector Part 1 and immediately asked to do the other classes as well. As she only had access to the first one, Adèle asked to review the material the following day and then we had a very long discussion about what she learned over dinner.

— Nino

Critikid’s Story

My name is Stephanie and I'm an online science teacher and educational video creator. A few years ago, I was looking for online critical thinking resources for children and came to realize that there wasn’t much out there. Most critical thinking resources are made for adults. I couldn’t understand why there were not more resources for children. I had been teaching children about logical fallacies for a while and I knew that they could not only understand that kind of stuff, but they loved learning about it!

Through teaching and making educational videos, I eventually got the time and money to start Critikid. Since I was bootstrapping, I had to do it cheap. I was able to keep the costs down because my husband is a web developer who designed and built this site.

I am teaching online science classes to cover my living expenses, so all money made from sales of Fallacy Detectors Part 1 will go towards funding Part 2. I don’t have much of a marketing budget, so if you want to support this project, it would be of great help if you spread the word.

Critikid’s Mission

Critikid’s goal is to give children the tools they need to rationally think about and discuss controversial issues, not to tell them the conclusions they should draw. Critikid’s stance is pro-logic and anti-fallacy. Besides that, I am avoiding taking stances on the side, especially about hot political topics.

Critical thinking is particularly important for children these days. They spend a huge portion of their lives on the Internet, which abounds in polarizing opinions, logical fallacies, and misinformation. This is the battlefield that the kids of today must withstand, and critical thinking is their armor. Critikid’s goal is to help them forge it.

  • Fallacy Detectors Part 1

    Available now - Develop the skills to tackle logical fallacies through a series of 10 science-fiction videos with activities. Recommended for ages 8-12.

  • Fallacy Detectors Part 2

    Coming early 2024 - The fallacy-busting quest continues with 10 more fallacies to defeat.

  • Cognitive Biases

    Coming Soon - Discover the sneaky tricks your brain plays on you and become a better decision-maker.

  • Symbolic Logic for Teens

    Coming in March 2024 - Learn how to make sense of complicated arguments.

  • Social Media Simulator

    Coming Soon - Prepare yourself for the fallacy-filled online world.

What is critical thinking?

Critical thinking is the process of rationally analyzing information, arguments, and even our own thought processes. In essence, it is the ability to distinguish between logical and flawed reasoning in order to communicate clearly, even when communicating with ourselves.

Why is critical thinking important?

Firstly, critical thinking makes us better communicators. Logical fallacies frequently find their way into conversations, and when we can’t identify them, they tend to derail discussions and make them unproductive. The ability to recognize when you or your conversational partner is committing a logical fallacy can help get the conversation back on track.

Critical thinking also makes us better decision-makers. Understanding cognitive biases means understanding our minds. When we can recognize our cognitive biases, we can get a better idea of why we make the decisions we do.

People who try to sell us products or ideas know all about logical fallacies and cognitive biases, and they know how to use them to their advantage. The ability to think critically helps us to defend ourselves against manipulation.

At what age should kids start learning critical thinking?

Children can do activities to develop their critical thinking skills even before they can talk. A toy that lights up when a button is pressed teaches cause and effect, peek-a-boo teaches object permanence, and nesting toys help develop problem-solving skills.

Once kids can talk, they can start to do simple experiments. For example, a parent might ask, “What do you think will happen when I mix the red and blue paint?” The child can make a prediction and then test it by mixing the paints. In the future, I'll post critical thinking activities for kids on this site.

Critikid will offer various levels targeting different age groups. Fallacy Detectors Part 1 is aimed at children ages 8-12. The formal logic course that I am now working on will target kids 13 and up.

I’ve been teaching critical thinking to children for years now, so I know that they are not only capable of understanding it, but they love it. What kid wouldn’t find it amusing to hear about the silly mistakes that even adults can make? Moreover, childhood is the best time to strengthen the mind’s defenses and teach it to recognize its biases. It only gets harder as you get older.

Who are you?

My name is Stephanie Simoes. I’ve been a science teacher and children’s educational video creator for many years. My background is in biology and philosophy. I’m running this project with a very small team of talented freelancers.

If you are interested in learning more about my online science classes, please email me at